为什么英语这么难学？原因之一就是，1个单词多个意思也就算了，但居然有单词同时有2个相反的意思！比如↓
dust: 1 除去灰尘 to remove dust.
2 撒上粉末 to cover with dust.
hysterical: 1 歇斯底里的 frightened and out of control.
2 笑翻了的 funny.
nervy: 1 大胆的 showing nerve or courage.
2 神经质的 excitable and volatile.
fast: 1 快的 moving quickly.
2 不动的 solid and unable to move.
seed: 1 播种 to sow seeds.
2 去籽 to remove seeds.
weather: 1 渡过难关 to withstand a storm.
2 风化、侵蚀 to wear away.
screen: 1 放映 to show, e.g. a film.
2 遮蔽 to hide something.
bound: 1 固定在一个地方 fastened to a spot.
2 前往某个地方 heading for somewhere.
sanction: 1 认可 to approve something.
2 制裁 to boycott something.
apology: 1道歉 an expression of regret for something.
2 辩护 a defence or justification of something.
strike: 1 击打 to hit.
2 （棒球）没击中球 to miss (in baseball).
moot: 1 有争议的 debatable.
2 不需要讨论的 not worth debating.
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