单词：hydrostatic lubricator
液压润滑器
单词：hydrostatic lubricator 相关文章
Amazing Crab s D: What's the difference between a hard- shell ed blue crab and a soft- shell ed blue crab ? Y: Is this a trick question? D: I'll give you a hent. It has to do with the crab s skeletal system. Y: Skeletal system? You got me there, I kn
发表于:2019-02-16 / 阅读(222) / 评论(0)
英语听力文摘 English Digest
英语听力文摘 English Digest