A good book is the best of friends,the same today and forever. 好书乃挚友，情谊永不渝。
a rain check 延期举行
After you. 你先请。
Are you insane? 你疯了吗？=Are you out of your mind? =Are you nuts?
As far as I'm concerned 据我所知
As far as I'm concerned, I am not responsible for that report.
Bob’s your uncle. 一切如意。（形容做事很容易就达到目的）
Break a leg! = Good luck! 祝好运！
Business is business. 公事公办。
Can you drop it? 能讲点别的吗？
Caution is the parent of safety. 小心驶得万年船。
Come on, get real! 得了，实际一点儿吧!
Content is better than riches. 知足者常乐。
Do as you would be done by. 己所不欲，勿施于人。
Do well and have well. 善有善报。
Do you really mean it? 此话当真？
Doing is better than saying. 做得好胜于说得好。
Do not praise a day before sunset. 盖棺定论。
Don't be silly! 别傻了。/别说傻话。使用场景：
A: Thank you so much.
B: Don't be silly. It was my pleasure.
Don't claim to know what you don't know. 不要不懂装懂。
Don’t get me wrong. 你别误会。
Don't give me your cold, man! 不要把你的伤风传染给我！
Don's play games with me. 别跟我耍花招。
Don't speak all you know, but know all you speak. 不要尽言所知，而要尽知所言。
Don't take it to heart. 别往心里去，别因此而费神。
Don't try to teach your grandmother to suck eggs. 不要班门弄斧。
Each bird love to hear himself sing. 孤芳自赏。
Eat to live, but not live to eat. 人吃饭是为了活着，但活着不是为了吃饭。
Every advantage has its disadvantage. 有利必有弊。
Every cloud has a silver lining. 山穷水尽疑无路，柳暗花明又一村。
Everything is good when new, but friends when old. 东西是新的好，朋友是老的亲。
Explaining is concealing. 解释就是掩饰。(标准答案？Not sure.)
False friends are worse than bitter enemies. 明枪易躲，暗箭难防。
Far water does not put out near fire. 远水救不了近火。
Feast for the eyes. 视觉盛宴/赏心悦目。
Fields have eyes, and woods have ears. 隔墙有耳。
Fire and water have no mercy. 水火无情。
Fortune knocks once at least at every man's gate. 风水轮流转。
Get out of here! 滚开！
Give as good as one gets. 以其人之道，还治其人之身。
God helps those who help themselves. 自助者天助。
Goodness blows no trumpet, nor desires to have it blown. 美德不自吹自擂，也不愿被吹捧。
Great hopes make great man. 伟大的抱负造就伟大的人物。
Happiness is a way station between too much and too little. --C.Pollock ,British jurist 幸福是太多和太少之间的一站。英国法学家波洛克
Heaven never helps the man who will not act. 自己不动，叫天何用。
He is not fit to command others that cannot command himself. 正人先正己。
Hope for the best, but prepare for the worst. 抱最好的愿望，做最坏的打算。
How about grabbing lunch next Monday? 下周一咱们一起吃个午饭吧？
Thanks for asking, but I have other plans.
Ok,let’s do it another time.
Thanks for asking, but I need to go somewhere else, how about a rain check?
Sure, some other time.
How you doing? 你好吗？
How dare you? 你好大的胆子！
Humility is the foundation of glory. 谦卑是荣誉的基础。
I'm behind you. 我支持你。
I'm broke. 我身无分文。
I did the laundry last night. 我昨晚洗衣服了。
I am fed up! 受够了!
I am counting on you. 我就指望你了！
I couldn't be more sure. 我再肯定不过了。（如果你很强烈地想要人家相信你，就用这个句子吧）
I don't know for sure. 我不确切知道。
I'm going to take a snooze for a minute. 我准备去打个盹儿。
I'm not going to kid you. 我不是跟你开玩笑的。
I'm not really into spicy food. 我不太喜欢辣的食物。I'm really dead. 我真的要累死了。
I'm through with you. 我跟你完了！ / 我跟你断绝关系！
I have plans. 我已经有安排了
Are you free this weekend?
No, I have plans
Are you doing anything next Friday?
No, nothing special I suppose
I've done my best. 我已经尽力了。
I mean it. 我正儿八经地，我说真的。
If you don't clean this table right now, I'll move out to somewhere else, I mean it.
I told you so. I told you so.
A: I just realize we can't handle those orders
B: I told you so.
If you make yourself an ass, don't complain if people ride you. 人善被人欺，马善被人骑。
Is that so? 真是那样的吗？
It is better to die when life is a disgrace. 宁为玉碎，不为瓦全。
It's deal. 一言为定。
It is easy to open a shop but hard to keep it always open. 创业容易守业难。
It is hard to please all. 众口难调。
It is the unforeseen that always happens. 天有不测风云，人有旦夕祸福。
It is too late to grieve when the chance is past. 坐失良机，后悔已迟。
It's nothing serious. 这没什么了不起！
It's not a big deal. 没什么大不了的
A: I forgot to upload the latest report, that’s really bad
B: It's okay, not a big deal
It never rains but it pours. 不鸣则已，一鸣惊人。
It was such a cheap shot. 手段太卑鄙了。
just so you know 知会你一下
Just so you know, this report is not updated, so if you need the latest report , please send an email to me.
Less is more. 物以稀为贵。
Let's get started. 我们开始吧。
Let's face it. 面对现实吧。（当你不愿意躲避困难时，就用它吧）
-----------Mind you! 请注意！听着！
Payday is here again. 又到了领薪水的日子。
Smile and silence are two powerful tools. Smile is the way to solve many problems and silence is the way to avoid many problems.
So we're on the same page. 那我们意见一致了。
Take my word for it. 相信我。
That depends. 看情况再说。
That's something. 太好了，太棒了。
The roots of education is bitter,but the fruit is sweet. 求知道路千辛万苦，知识硕果芬芳香甜。
water under the bridge 陈年往事，过去的事
It was ten years ago, those things are water under the bridge, let's talk about something else.
We must accept finite disappointment, but we must never lose infinite hope. 我们必须接受有限的失望，但是千万不可失去无限的希望。
We'd better be off. 我们该走了。
What are you thinking?! 你脑子进水啦？!
What's in your mind? 你在想什么？
What's the fuss? 什么情况， 咋回事？
Yay team! 加油！
You are a great help. 你帮了大忙了。
You have my word. / I give you my word. 我向你发誓(保证)。
You made your point. 我明白了。
Your words hit the nail on the head. 你的话真是一针见血。