Snakes did not acquire their poison for use against man but for use against prey such as rats and mice, and the effects on these of viperine poison is almost immediate.
因为蛇有毒液不是用来对付人的，而是对付它的猎物，诸如鼠类，毒液对这些猎物会立刻起作用。
新概念英语第四册
Lesson 20 Snake poison
📚 句中词汇解析
从本句中提取的重要词汇
vt. 获得，取得;学到;
💡 ac 加强 + quir 寻求，询问 + e → vt.取得；获得；学到
"To remove any ambiguity we have to acquire more accurate information."
为了消除含糊不清,我们必须取得更加精确的情报.
近义：obtain, procure, purchase, secure, buy, gain
反义：outwear, shed, abandon, chuck, dump, forget
prep. 反对;对…不利;紧靠;以防;
💡 gain =against (反对)#词根助记：反对
"Ten people voted in favour, five against and two abstained."
十人投票赞成，五人反对，两人弃权。
近义：athwart, agin
n. 被捕食的动物;捕食（习性）;受害者;受骗者;
vi. 捕食;（疾病等）使人慢慢衰弱;折磨;（人）靠欺诈为生;
💡 prey(prey)→掠食；牺牲者；捕食；掠夺
"the relationship between predator and prey"
捕食性动物与猎物之间的关系
近义：hunt, chase, kill, quarry, sport, catch
adv. 几乎，差不多;将近;快要;近乎;
💡 al(all)+most→差不多；几乎(=nearly)
"I like almost all of them."
我差不多所有的都喜欢。
近义：about, approximately, insufficiently, around, loosely, nearly
反义：liberally, off, outright, abundantly, plethorically, plumb
adj. 立即的;直接的，最接近的;目前的，当前的;直觉的;
💡 im无+medi中间+ate...的→无中间→ 即刻的；直接的
"She felt an immediate attraction for him."
她对他顿生爱慕。
近义：hither, near, nearby, neighboring, neighbouring, next
反义：isolated, outlying, remote, removed, retired, secluded