[?g?r.?n'ti:]verbtransitive

MAKE

CERTAIN確保

■If something guarantees something else, it makes certain that it will happen確保，使必然發(fā)生

?[+ (that)] The ￡50 deposit guarantees(that)people return the boats after their hour has finished.50英鎊的押金會(huì)確保人們?cè)趧澩甏髮⒋瑲w還。

■If something is guaranteed to happen or have a particular result, it is certain that it will happen or have that result肯定…必然發(fā)生；肯定會(huì)有某種結(jié)果

?[+toinfinitive] Just looking at a picture of the sea isguaranteedtomake me feel sick.哪怕是看一眼大海的圖片，我都會(huì)有暈船的感覺。

last-ditch attempt/effort

■an effort or attempt which is made at the end of a series of failures to solve a problem, and is not expected to succeed最后一招，最后一根救命稻草；孤注一擲

?In alast-ditchattempt to save his party from electoral defeat, he resigned from the leadership.為了避免他所在的政黨在大選中失利，他使出了最后一招——辭去了領(lǐng)導(dǎo)職務(wù)。

if something, especially something bad, goes undetected, no one notices it

go/remain undetected

Doctors can make mistakes and diseases?can remain undetected.

The thieves escaped undetected through?a basement window.

nounonly singular

■a very short moment of time一瞬間，一剎那

?They brought?out guns and for a split second nobody moved.他們拔出了槍，剎那間沒有人敢動(dòng)。

?We had to?make a split-second (= very quick) decision.我們得迅速作出決定。