用作定语
▲～+n.
A swift clap of thunder woke me.一阵突然的雷鸣把我惊醒。
He gave them a swift glance.他迅速地朝他们瞥了一眼。
He has a swift wit.他才智敏锐。
用作表语
▲S+be+～+prep.-phrase
He is as swift of foot as a hare.他跑得像兔子一样快。
▲S+be+～+to-v
They were swift to respond to our questions.他们迅速地回答了我们的问题。
He is swift to hear, but slow to speak.他听力敏锐,但不善言辞。
The river is too swift to swim.这河水流太急,不能游泳。
