Gettering
采煤, 采掘工作, 收气, 吸气, 吸气法(真空技术)
🗣️ 情景例句
I go camping in the mountains to enjoy the fresh air.
我去山中宿营以享受新鲜的空气。
Michael must hold on to the driver of the motorcycle.
米高必须紧紧抓住机车的骑士。
Yes.
看见了。