名词
中文翻译：预热
同义词：
['preheat', 'preheating例句：1. Before the oven is preheated', "it's best to wait for a few minutes.（在烤箱预热之前，最好等待几分钟。）"]
例句：
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1. Before the oven is preheated, it's best to wait for a few minutes.
在烤箱预热之前，最好等待几分钟。
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2.The machine needs to be preheated before use.
这台机器使用前需要预热。
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3.The chef preheats the grill before cooking steaks on it.
厨师在烤肉之前先预热烤架。