Vacual
真空的, 近于真空的
🗣️ 情景例句
It's seventy-five cents for adults and thirty cents for children under twelve.
大人75美分，12岁以下的小孩30分。
A policeman pricks up his ears.
一个警察竖起耳朵在认真地听着。
No, there isn't.
不，没有。