Vacua
n. 真空, 真空状态, 真空度, 空洞, 真空装置, 真空吸尘器, 空虚
🗣️ 情景例句
I don't know why I didn't think of it.
我不知道为什么我没有想到这一点。
He has a pound of beef.
他有一磅牛肉。
What about vegetables?
蔬菜呢？