动词
中文翻译：Unknown
同义词：
['pre-ignite', 'preheat']
例句：
-
1. The firework was set off just in time for the celebration.
烟花在庆祝活动开始时被点燃。
-
2. Before starting the engine, make sure all the lights are off.
启动引擎前，确保所有灯光都关闭。
-
3. The machine needs to be preheated before use.
机器使用前需要预热。