| 释义 |
DEFINITIVE EXAMPLES 权威例句〔boss〕A hub, especially of a propeller.冲头：冲头，尤指推进器冲头美国传统〔center〕A small conical hole made in a piece of work with a center punch so that a drill can be accurately positioned within it.中心孔，转柄孔：在带中心冲头的工件上为使钻头准确放置而做的小锥形孔美国传统〔punch〕Part of the punch in the machine cuts the hole.机器中的一部分冲头用来割洞。外研社新世纪〔spurt〕I flushed bright red as a spurt of anger flashed through me.一股怒气直冲头顶, 我的脸一下子涨得通红。外研社新世纪〔spurt〕I flushed bright red as a spurt of anger flashed through me.一股怒气直冲头顶，我的脸一下子涨得通红。柯林斯高阶 |