set off
na.分；分割；划开；区划
出发；动身；引起
例句
1.When he got to Shanghai , the ship had already set off .
他到达上海时，轮船已经开走了。
2.This would set off alarm bells in Beijing if it proved to be a true picture of export performance.
如果这真是出口表现的真实图景，将在北京拉响警钟。
3.Now it was in front of him, to set off soon.
现在它就在我面前，马上就出发了。
4.The news did not incline me to set off at once.
这消息倒让我不想马上出发了。
5.Gorgeous night for a pair of loving each other to rely on to set off the shadow.
夜的华丽适合一对恩爱的影子彼此依靠来衬托。
