Ballscrew
滚珠丝杠
🗣️ 情景例句
Well,
好了，
An honest man's word is as good as his bond.
诚实人的话像他的契约一样靠得住。
By the time you read this, the Hubble's eagle eye will have sent us thousands and thousands of wonderful pictures.
等到你读到这篇文章时，敏锐的哈勃望远镜已经为我们送来了成千上万张精彩的照片。