refrain from 雅思

Please refrain from smoking during the performance.

演出时请勿吸烟。

Presenters and recipients at the next Academy Awards would be advised to refrain from rambling thank-you and unentertaining political proclamations.

下一届奥斯卡颁奖典礼上，颁奖和得奖受到规劝：应避免拉拉的感谢词和乏味的政治。