它的喷嘴抹了某种润滑油。Its nozzle was smeared with some kind of lubricant.天气冷时齿轮润滑油可能凝结而形成凹槽.Gear lubricants may congeal and channel in cold weather.这个月我们需要更多润滑油.We shall require more lubrication oil this month....
How far back can you trace your family tree?你的家谱可以追溯到多少代？A family tree is a diagram with branches, showing how the members of a family are descended and related.家谱是说明家族成员血缘承袭关系的明细分支图.It grew on a venerable and venerated ...
战后我们只能非常节俭地生活.We had to live frugally after the war.拨款委员会突然地和不明智地节俭地裁减对生活水平低的人的援助.The appropriations committee, suddenly and ill - advisedly parsimonious, cut funds for assistance to the disadvantaged....