turn off 关掉;关闭;
turn on 打开，发动;
turn up 出现;发生;开大;
turn down 减少;拒绝;
turn over 移交给;仔细考虑;
turn into 变成;成为;
in turn 轮流，依次;
turn away 避开;转过脸;
turn out to be 结果是;原来是;
turn from 对…感到厌恶;
turn around 使(转身)
