preheat

动词

1. 1

   预热

   Preheat the oven to 180 degrees before baking the cake.

   烤蛋糕前先把烤箱预热到一百八十度。

2. 2

   预热、暖机机械

   The machine must be preheated for ten minutes before use.

   这台机器使用前必须先预热十分钟。