v.惡化；變質(zhì)；衰退

We cannot allow the situation to deteriorate. 我們不容許情況惡化。

Relation between the two countries have deteriorated sharply in recent week. 最近幾周那兩個(gè)國家間的關(guān)系嚴(yán)重惡化了。

Food is apt to deteriorate in summer. 食物在夏天容易變質(zhì)。

The discussion deteriorated into a bitter quarrel. 這場討論演變成了激烈的爭吵。

His sight have begin to deteriorate. 他的視力已經(jīng)開始下降。