| 释义 |
idiomcatch sb off guardto do something at a time when someone is not prepared for it to happen, so that they are not able to deal with the situation well:Cadillac was caught off guard by the huge numbers of orders for the high-performance version of the two new cars.Mrs Maynard's invitation had caught me off guard. I didn't want to go to the party, but I had no good excuse.be off (your) guard: The detectives were not easily deceived and never off their guard for a minute
|