您要查找的是不是：
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- The chain has fallen foul of plants in the water. 链条已和水中的植物缠绕在了一起。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- She has a gold chain about her neck. 她在脖子的周围挂着一根金项链。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- The chain has run foul of some plants in the water. 铁链缠在水中的一些植物上。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- She wore a silver chain around her neck. 她脖子上戴着一条银项链。
- These two pieces of the chain hook together. 这两个链环套在一起。
- He detached a link from a chain. 他从链子上拆下一个链环。
- The anchor chain took charge and ran out. 锚链失去控制而滑了出来。
- A pendant worn on a chain around the neck. 垂饰挂在脖子项链上的垂饰物
- He runs a chain of pasta restaurant. 他经营着一个面食餐馆联号。
- I detached my watch from the chain. 我从表链上解下手表。
- As he fell, he caught hold of a hanging chain. 当他跌倒时，便往一条悬挂的绳子抓去。
- The dog was fastened to a post by a chain. 那条狗被链条拴在柱子上。
- The traffic accident led to a chain of events. 交通事故引起了一连串的事件。
- As he fell, he grasped at a hanging chain. 当他跌倒时，便往一条悬挂的绳子抓去。
- The dog is fastened to a post by a chain. 那条狗被链条拴在柱子上。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
