touch off

动词 v.
中文释义

英文释义

动词 v.
  1. To start (something); to set off traps; especially used for unstable situations that may magnify if disturbed. idiomatic,transitive
    — Be cautious talking about religion or politics, lest you touch off an argument.
  2. To cause a fire to start. idiomatic,transitive
    — A spark touched off the conflagration.
  3. 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.

词形变化

touches off present,singular,third-person touching off participle,present touched off participle,past touched off past
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