您要查找的是不是：
- Is the water polluted at source or further downstream? 河水是在源头还是在流出之後受到污染的？
- Downstream the river twists and turns a lot. 这条河的下游弯弯曲曲。
- The logs are drifted downstream to the mill. 那些原木沿河顺水漂到工厂。
- 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。
- She has a gold chain about her neck. 她在脖子的周围挂着一根金项链。
- The chain has run foul of some plants in the water. 铁链缠在水中的一些植物上。
- 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。
- The log was swirled away downstream by the current. 水流载着原木盘旋而下.
- 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 current drifted the boat downstream. 水流把小船冲往下游。
- 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。
- No downstream shutoff valves are allowed. 不允许有下游关闭阀。
- 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。
