Gettering
采煤, 采掘工作, 收气, 吸气, 吸气法(真空技术)
🗣️ 情景例句
Well, what do you think about Richard and me
那么你觉得我和Richard
Why was only he exempted from work?
为什么只有他不必工作呢？
Is this your eraser?
这是你的橡皮擦吗？