简明释义phr. 出发;引爆;引起;(使)开始;衬托;抵消;分开同反义词同:activate, bring out, depart, detonate参考例句1. They set off at first light. 他们天一亮就出发了。2. The children set off for school. 孩子们上学去了。3. We set off at a canter.我们驱马慢跑开始上路。4. You can set off it by a comma.你可以用逗号隔开它。5. We set off for the pyramid at dawn.我们于拂晓出发去参观金字塔。