在踏上电梯前时，朋友们和她一一握手告别。
Everybody shook her hand and waved good-bye as she got on the elevator.
实地教学返回时，要与每位陪同老师握手告别。
When returning from a trip, shake the hand of every chaperone.
美国人告别时很少握手，除非在公务场合。
Americans rarely shake hands to say good-bye, except on business occasions.
美国人告别时很少握手，除非在公务场合。
Americans rarely shake hands to say good-bye, except on business occasions.
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