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- Keep down of you'll be hit by shell fragments. 别起来，否则你会被弹片击中的。
- The snail retreated into its shell. 蜗牛缩进壳里去了。
- A shell splinter embedded itself in the wall above his head. 在他头上方的墙壁上嵌有一块小小的贝壳片。
- The building was burned to a shell. 大楼被烧得只剩下空骨架。
- The despair left him a mere shell of a man. 他陷入绝望，形同躯壳。
- She crumbled an empty snail shell in her fingers. 她用手指捏碎了一个空蜗牛壳。
- A snail's shell is spiral in form. 蜗牛壳是螺旋形的。
- Keep down or you'll be hit by shell fragments. 别起来，否则你会被弹片击中的。
- The building was destroyed by an artillery shell. 这座建筑物被炮弹炸毁了。
- neutron shell 中子壳层
- A proton or a neutron, especially as part of an atomic nucleus. 核子质子或中心，尤指作为原子核的一个组成部分
- Having a shell consisting of two hinged valves. 双瓣壳的有由两个开合的瓣组成贝壳的
- Proton and neutron form a charge doublet. 质子和中子构成电荷双重态。
- This is the stabilization of the neutron. 这就是中子的稳定性。
- I shall be expected to shell out (the money) for the party. 这次聚会可能要让我花钱。
- A clear plastic bubble or shell covering part of an aircraft. 镶有玻璃的座舱飞机上由透明的玻璃构成的透明圆罩或壳状物
- Her rejection of him seems to have made him go back into his shell. 他遭她拒绝后就更不爱吭声了。
- Neutron has no charge, either positive or negative. 中子不带电荷,既不带正电荷,也不带负电荷。
- We agreed to share the cost but later he wouldn't shell out. 我们原先同意均摊费用,但後来他却不肯付钱。
- The antiparticle of the neutron. 反中子中子的反粒子
