您要查找的是不是：
- Either of the margins of the aperture of a gastropod shell. 腹足纲软体动物缺口的两个边缘中的任一个
- The aperture in the door is so wide. 门上的孔隙太大了。
- A lid or flap covering an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks. 鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳
- Keep down of you'll be hit by shell fragments. 别起来，否则你会被弹片击中的。
- We saw light through a small aperture in the wall. 我们透过墙上的小孔看到了亮光。
- 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。
- 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
- shell aperture 壳口
- An aperture through which matter is discharged. 输出口，喷嘴物体被释放出的开口
- The only light came through a narrow aperture. 仅有的光来自一个小孔。
- I shall be expected to shell out (the money) for the party. 这次聚会可能要让我花钱。
- Set to the desired lens aperture. 设置所需的镜头光圈。
- 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
