at the boil

• adv. 沸腾着(在沸点)

例句

用作副词 (adv.)

1. Mum told me to keep the kettle at the boil.
   妈妈叫我让壶里的水一直沸腾着。
2. The solution in the test tube is boiling away.
   试管里的溶液不住地沸腾着。