1、I lost my notes and had to ad-lib the whole speech.
我把講稿丟了，只好臨時(shí)說(shuō)了一通。

2、he made a few ad-lib remarks
他說(shuō)了幾句即興的評(píng)論。

3、Throughout the plan she had to ad-lib constantly.
在整個(gè)計(jì)劃中，她不得不經(jīng)常無(wú)準(zhǔn)備地做。

ad-lib翻譯

vi.vt. 即興編造, 即興講演, 即興演唱, 即興演奏 詳情