质子的质量几乎是电子的2,000倍。Protons are nearly 2000 times as heavy as electrons.质子是物质的基本粒子。A proton is an elementary particle of matter.中子和质子构成了原子核.The neutrons and protons form the core of the atom....
胚有两片大而肉质的子叶.The embryo consists of two large fleshy cotyledons.这种肉质的表面可绝不仅是让我们看起来体面.This fleshy covering does a lot more than make us look presentable.种子坚果状, 卵圆形或长圆形, 顶端凸尖, 生于杯状肉质的假种皮中.Seed nut like, oval like with apex ...
Make method and cardinal principle of cloth cover rubber overshoes are same.制做方法与布面胶鞋大体相同.Leather overshoes were put on the horses' hooves to stop them marking the turf...马蹄上套了皮套子，以免弄脏赛马场。Leather overshoes were put ...
The apartment house where John lives is five stories high and he lives in one of the upper storeys.约翰住的公寓是五层楼,他住在楼上....the upper storeys of the Empire State Building.帝国大厦的最上面几层Four storeys of parking beneath the theatre ...