军队来援救被围的守备军.The troops came to the relief of the besieged garrison.我曾经在不同守备位置守备,直到高中才开始在投手板演出.I played different positions and didn't start pitching until high school.[体育运动]守备位置:某一特定球员负责的地区.Sports The area for which...
If you have been dithering about buying shares, now could be the time to do it.如果你一直在犹豫是否要买股票，现在或许是买的时候了。For God's sake stop dithering and make up your mind!看在上帝面上,别再犹豫了,快拿定主意吧!We're still dithering over whethe...
学位课程不讲授这个课题。The topic is not taught in degree courses.关于这个课题缺乏可靠资料。There was a dearth of reliable information on the subject.我要就我的研究课题同导师见一次面。I have a meeting with my supervisor about my research topic....
无穷级数的收敛性与发散性与此概念有关.Convergence and divergence of infinite series depend upon this concept.我们用一块负透镜,它将使光线发散一些.We introduce a negative lens which will diverge the rays a bit.高辐射功率的光束会有高的发散度.A beam of high radiant power wil...