大多数海洋腹足纲软体动物在某些幼体阶段形成一种有纤毛的游泳器官。Most marine gastropod mollusks develop a ciliate swimming organ in certain larval stages.其中,双神经纲3种,瓣鳃纲68种,腹足纲80种.Among them there are 3 species of Amphineura, 68 species of Lamellibranchi...
Put the fire on lee side, with relative wind abeam.置火于下风舷, 并使船侧受风.The lighthouse was abeam of the ship.灯塔在船的正横方向.The ship yawed as the heavy wave struck abeam.当巨浪向船舷撞击时，船暂时地偏离了航道。We were heading S . S . W . , and had a s...
她用石膏塑造了一座林肯半身像.She made a plaster cast of a bust of Lincoln.我把一块粘土制作成我母亲的半身像。I worked up a lump of clay into a bust of my mother.他的写字台上放着他最喜爱的诗人的半身像.On his desk there stood a bust of his favorite poet....
They may be wise to err on the side of caution.他们过于谨慎也许是明智的。To err is human, and nobody likes a perfect person.是人都会犯错，而且谁也不喜欢完人。To err is human.[谚]人皆有过....