illusion n. 幻觉，错觉，错误的信仰(或观念)
如：I thought I saw a ghost but it was just an optical illusion.
我以为我看见鬼了，其实只是一种幻觉。
I was under the illusion that he was honest until he was caught stealing some money.
他偷钱当场被人抓住，在此之前我一直误以为他是个老实人。
susceptible adj. 易受外界影响的，易受感染的
如：He's so susceptible that she easily gained his affection.
他易受感情影响，所以她很轻易就得到了他的爱。
The plant is not susceptible to disease.
这种植物不容易受病害侵袭。
rout v. 使 ... 溃败，使 ... 败逃
如：We put the enemy to rout.
我们击溃了敌人。
Our party was routed at the election.
我们党在竞选中被彻底击败了。
hypothermia n. [医]体温过低
如：Every winter some old people die from hypothermia.
每年冬天都有些老人死于体温过低。