Most people think that able people are naturally able, but that is not true. "They work hard for many years without others knowing, but once they become famous, all people will know them."

一般认为“有能力的人”是与生俱来的，其实不然，“十年寒窗无人问，一举成名天下知”。

youdao

For these reasons and others, wise auction theorists would avoid predicting how a specific auction design will work without knowing much more about the context.

出于这些和其它原因，明智的拍卖理论家在没有充分了解整个背景的情况下，会避免预测某个具体的拍卖计划会有什么效果。

youdao

During that time, the infected person can infect others without knowing it.

在那段时间，被感染者可能并不知道自己会感染别人。

youdao

With the new set-up MPs no longer need to jostle to get the speaker's attention, but some of them pressed their buttons without knowing it and others did not do so when they were required to.

BBC: Kenyan MPs get new $3,000 seats

Without knowing who was doing what and where, some communities were overwhelmed with aid while others were neglected.

CNN: Learning lessons from past disasters