period

例句与用法

Of course, many problems recur at various periods .
当然，有许多问题会在不同的时期反复提出。
She passed through a difficult period after her marriage failed .
她婚姻破裂后一度十分困难。
The result of this experiment was not noticeable for a long period .
这个实验结果长期不显著。
The commencement of articulate speech belongs to this period .
音节分明的语言即开始于这一期。
Long sonication periods can lead to some inactivation .
长时间的声波作用可导致某种程度的失活。
The war had put a period behind bethune the student .
大战在白求恩的学生时代后面加了一个句点。
He sold his car to tide over his period of unemployment .
他卖掉了汽车以渡过他失业的一段时期。
This period may be further extended by another declaration .
该期限还可以用另一次声明再度延长。
No small territory to cover in a two-hour question period !
要在2小时之内回答这些问题可不简单！