这次原油泄漏可能会使波斯湾的海龟灭绝。The spill could wipe out the Gulf's turtle population.鲸 、 海豹, 企鹅和海龟均有鳍形肢.Whales, seals, penguins, and turtles have flippers.假如你把海龟翻过来, 它就无能为力了.If you turn over a turtle on its back, it will become...
He took the paraffin stove on a picnic and the ruddy thing wouldn't work.他带了那个煤油炉去野餐，但是那个该死的东西根本用不了。Methods Paraffin method, semi - thin sectioning, and histochemical method were used.方法石蜡切片法 、 半薄切片法 、 组织化学法.Anatomi...