kill off

To destroy in such large numbers as to render extinct.

屠 ：摧毀大多數(shù)造成絕種

be in at the kill

be present at or benefit from the successful conclusion of an enterprise

企業(yè)成功交易時(shí)在場(chǎng)或受益

go (或 move in 或 close in) for the kill

take decisive action to turn a situation to one's advantage

采取決策改善形勢(shì)

if it kills one

(informal)whatever the problems or difficulties involved

(非正式)無論多難；無論如何

we are going to smile and be pleasant if it kills us.

無論如何我們都要微笑，都要高興。

kill oneself laughing

(informal)be overcome with laughter

(非正式)笑不可抑

kill or cure

(Brit.)(of a remedy for a problem) likely to either work well or fail catastrophically, with no possibility of partial success

(英)（問題的補(bǔ)救）孤注一擲；非 即活；不成功便成仁

the spring Budget will be kill or cure.

春季預(yù)算將會(huì)是孤注一擲的行為。

kill two birds with one stone

(proverb)achieve two aims at once

(諺)一石二鳥，一箭雙雕

kill with (或 by) kindness

spoil with overindulgence

溺愛，寵壞

kill someone/thing off

get rid of or destroy completely, especially in large numbers

光，消滅

there is every possibility all river life would be killed off for generations.

非常有可能的是所有的河流生物會(huì)有好幾代都被毀滅掉。

kill out

(of an animal) yield (a specified amount of meat) when slaughtered

（動(dòng)物）屠宰后出（肉量）

in at the kill 或 in on the kill

Present at the moment of triumph.

獲勝時(shí)在場(chǎng)