Mississippi also passed a law saying a black person could be forced to work for a white man usually his former owner if he had no other job.

VOA: special.2010.01.21

Now the number one reason, and we have to acknowledge it up front, is usually economically there's no alternative or people believe there's no alternative.

首要原因，我们必须承认，通常是因为，经济上没有其他选择,或者人们认为别无选择。

耶鲁公开课 - 心理学导论课程节选

It's usually best to respond in a complete sentence rather than saying yes or no which can be ambiguous.

一般来说，回答最好是完整的句子，而不是简单的模棱两可的“是”或“不是”。

Do you mind 课堂 - SpeakingMax英语口语达人

(NO TRANSCRIPTS) But what caused grief for many gave others a chance to engage in activities not usually seen in the nation's capital.

VOA: standard.2010.02.07