a hitherto unknown species of moth迄今仍属未知种类的蛾a hitherto unnoticed detail一个迄今未有人注意的细节His brain wilted from hitherto unprecedented weariness ( Vladimir Nabokov )因迄今为止从未有过的疲劳,他感到萎靡不振 ( 弗拉基米尔纳博科夫 )Increased computational powe...
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....
在花园里挖土的最好工具是铁锹.The best implement for digging a garden is a spade.她到处走, 又挖土,又锄草.She went from place to place, and dug and weeded.他的手掌因干挖土的活儿而磨破了皮.His palms were excoriated by the hard labor of shoveling....