每1~2天为大家更新5个左右的GRE单词，每个单词都采用GRE官方指定的webster英英解释，而且所有的例句都是来自华盛顿邮报Washington Post/自然杂志Nature/西雅图时报Seattle Times/纽约时报NewYork Times/科学杂志Science Journal等一线期刊，并且每一个单词后面都配了相关生动的图片，希望大家可以喜欢。
staple n. 主要产物(要素),原料(地), adj. 主要的,重要的 vt.用订书机装订
[e.g] Rubber became the staple of the Malayan economy.
[e.g] He was a staple among the Royals' top prospects for years, but his first two chances in Kansas City went so poorly that he was shuttled back to the minors.
多年来他一直是皇家队前景最看好的主力，但他在堪萨斯城的前两次机会非常糟糕，以至于他被送往未成年人。Seattle Times Mar 5, 2019
fathom n. 测量深度, 看穿, 了解 vi. 测量深度 vt. 彻底了解，测深
[E2E] To fathom something is to understand it thoroughly, and is usually used in the negative,
as in "I can't fathom why he doesn't want to go along with us."
[e.g] The fact that this sort of hate is happening in small town hockey rinks is difficult to fathom for many.
对于许多人来说，这种仇恨发生在小镇曲棍球场的事实很难理解。BBC Mar 1, 2019
[e.g] It may be hard to fathom now, but facts — and the consensus they allowed, no matter how temporary or tenuous — were a “basis for progress.”
现在可能很难理解，但事实上 - 他们所允许的共识，无论多么暂时或脆弱 - 都是“进步的基础”。New York Times Feb 27, 2019
yeast n. 酵母 vi.发酵; 起泡沫;
[e.g] The yeast interacts with sugar and fills the bread with pockets of air as it bakes.
[e.g] Furthermore, Ubersax says the new yeastproduces cannabinoids at a rate several orders of magnitude higher than that of other strains.
此外，Ubersax说，新酵母生产大麻素的速度比其他菌株高几个数量级。Scientific American Feb 27, 2019
commonplace adj. 平凡的, 陈腐的 n. 常事, 老生常谈, 普通的东西
outlying adj. 远离中心的, 偏僻的
downplay vt. 不予重视，对...低估 underestimate