Microvacuum
高真空
🗣️ 情景例句
You're right. Of course.
说得也是。
A stitch in time saves nine.
小洞不补，大洞吃苦。
This attracted the attention of Richard Humphries who was then the most eminent boxer in England.
这引起当时英国拳坛名将理查德。汉弗莱斯的注意。