That's a difficult question. I don't like working period, really.

这是个难以回答的问题。我不太喜欢工作时间。

And for the longest time, we just didn't know why or why lithium works, period.

很长一段时间，我们都不知道锂为什么能起作用。

SEN.CHUCK SCHUMER (D-NY): We'd like to get a debt ceiling done in this work period.

我们希望在本工作期内算出债务上限。

Work for that work period and then go actually have fun and do something that you really enjoy afterwards.

在那个工作期间工作，然后真正享受乐趣，然后做一些你真正喜欢的事情。

So, the divisions between African American and white players worked against the team throughout the season, the period of time that they were playing football.

因此，非洲裔美国人和白人球员之间的分歧在整个赛季都对球队不利， 在他们踢足球的那段时间里。

There are some kinds of jobs where you need someone to work the entire 24-hour period, or at least to have someone working the entire 24-hour period.

有些工作需要有人在整个 24 小时内工作，或者至少需要有人在整个 24 小时内工作。