Whaley recalls how at the beginning of the year, when called upon to read, Chris would excuse himself to go to the bathroom.

威利回忆起在年初，当克里斯被叫去读书时，他常常找借口去洗手间。

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John was not listening and made a random answer when called upon to reply.

约翰没有听讲，当被叫起回答问题时，他胡乱地给了个回答。

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Pessotto is a very intelligent young man and he always answered the cause when called upon.

佩索托是一个非常聪明的人，他总是会积极的帮助别人。

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Because of what we know we are capable of achieving when called upon to achieve it.

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Thus, we must be certain the Cold War relics we keep (with their "eight-track tape" technology) function when called upon.

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There are many mature workers that can outthink and outrun younger workers when called upon to respond to a critical change.

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