Gettering
采煤, 采掘工作, 收气, 吸气, 吸气法(真空技术)
🗣️ 情景例句
Are the people friendly in China?
中国的人们友好吗？
A little learning is a dangerous thing.
浅学误人。
We're having trouble arranging for a carrier.
因为货运公司的安排有问题。