There is a price to be paid for maintaining these safeguards.维持这些防范措施是要付出代价的.This paper introduces the maintenance of CDROM and its maintaining method.介绍了光驱的日常维护及常见故障的维修方法.She has been comparatively successful in maintai...
" Oh, if I only had a brass andiron - knob again!“ 哦, 我要是再能得到那只柴架上的铜把手就好了!There is a knob of butter on the table.桌子上有一小块黄油。A loose brass knob on the bedstead rattled.床架上一个松动的球形铜扣发出嘎啦声。Annulet knob, circle knob, there are...