名词
中文翻译：开口
同义词：
['mouth', 'gap', "opening例句：1. The car's engine is loud enough to make the driver open their mouth in surprise.（汽车发动机的声音足够大，以至于让司机惊讶地张大了嘴巴。）2. The gap between the two countries is too wide for them to easily cross.（两国之间的差距太大，他们很难轻易跨越。）"]
例句：
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1. The car's engine is loud enough to make the driver open their mouth in surprise.
汽车发动机的声音足够大，以至于让司机惊讶地张大了嘴巴。
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2. The gap between the two countries is too wide for them to easily cross.
两国之间的差距太大，他们很难轻易跨越。
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3.The opening of the window allows fresh air to enter the room.
打开窗户可以让新鲜空气进入房间。