He's taking out his notebook.

A Underline the joining words in the passage.

选出课文中所有连词.

Please use the relative form when writing this sentence.

造句时请使用关连词.

Write two different paragraphs using the points and connections given below.

用以下要点和连词写出两段不同的文字.

The river forks three miles down.

这条河在下游三英里处岔流.

The existing urban drainage system is hereby introduced, including the combined flow and separate flow systems.

阐述了现有城镇排水系统的排水体制,并着重介绍了合流制排水体制和分流制排水体制.

May manufacture the curve to transport and to diverge the confluence expulsion system.

可以制作成转弯输送和分流合流输送系统.

The river has three main branches.

这条河有三条主要的支流.

The premium design of anti-sheets make more effectively hermetic.

设计精巧的 防 逆流阀封闭效果更佳.

Walking a dozen kilometres upstream at the Fishing Bay.

沿溪水逆流而上十余公里,便是撵鱼坝景区.

The salt water, being more dense, flows upstream under the fresh water which is flowing downstream.

淡水在上层向下流动,比重更大的盐水在下层逆流向上.

He was making his way upstream.

他正逆流而上.

There are 175 water quality monitoring sections, 29 of which are mainstream ones.

175个水质监测断面, 其中干流断面29个.

The sand and gravel in the Yangtze river is good building and filling materials.

摘要长江中下游干流河道内的砂石是较好的建筑和填筑材料.

Finally, some recommendations for current monitoring of the River, are presented.

最后, 提出了一些改善当前海河干流监测的建议.

The main affluent for the river is extremely polluted.

这条河的干流污染极为严重.

Ten years in the impressive course of history, is just a dust grain.

十年,在历史的巨流不及一粒微.

The currency compositions of the two flows do not necessarily match.

购成这两股巨流的货币组成并不需要完全匹配.

The money flooding into the economy will create some green jobs.

市场中的资金洪流会创造一些绿色岗位.

They seem to lie upon us like a deep flood.

它象一股深深的洪流淹着我们.

But can you traverse the stream?

可是,你能闯过那车的洪流、人的洪流 吗 ?