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....
I've booked it for Thurs. 8th Sept.我预订了9月8号星期四的票。Our school will begin on Sept.3.我们学校将在九月三日开学.On Sept. 11, all three kinds of heroism came to light.在9月11日, 3种类型的英雄主义行为都有所体现....
Most poultry farmers have to rely on commercially manufactured feeds.多数饲养家禽的农场主不得不依赖商业化生产的饲料。Contaminants found in poultry will also be found in their eggs.家禽身上发现的污染物，在禽蛋里也会有。Dr Binger keeps poultry, pigs and goats.班热博士饲...