touch off
动词- To start (something); to set off traps; especially used for unstable situations that may magnify if disturbed.
- To cause a fire to start. · A spark touched off the conflagration.
- To establish a reference coordinate or datum, by moving the tool head to just touch the workpiece or machine bed. · A traditional method of touching off uses a piece of thin paper placed between the tool and workpiece.
在真实文章中学习touch off
注册免费账号后，在图书馆中把鼠标悬停在任何单词上即可看到意思，还能听朗读、收藏单词并按你的记忆安排复习，看到每本书你已经认识多少。