The levels of chemicals in the river are not insignificant.
河水中的化学物质含量不容忽视。
No, we can't swim in the river.
不，我们不能在河里游泳。
It's not safe to swim alone in the river.
一个人在河里游泳不安全。
Digging sand will be strictly limited in the river.
在河里挖沙将被严格限制。
Our teacher often tells us not to swim in the river.
我们老师经常告诉我们不要在河里游泳。
Swimming alone in the river is dangerous for children.
孩子们独自在河里游泳是很危险的。
They fought in the river for three days and three nights.
他们在河里打了三天三夜。
Our teachers and parents always warn us not to swim in the river.
老师和父母总是警告我们，不要在河里游泳。
Their parents don't allow them to swim in the river because it's really dangerous.
他们的父母不允许他们在河里游泳，因为那真的很危险。
A large ship broke down in the river, leaving at least 100 big ships unable to pass.
一艘大船在河里抛锚，造成至少100艘大船无法通过。
Seeing all their garbage in the river makes people begin to care about environmental issues.
人们看到所有他们丢在河里的垃圾，会开始关心环境问题。
Since early morning he had been swimming in the river, in company with his friends the ducks.
从清晨起，他就和鸭子朋友们一起在河里游泳。
All the lifeguards on the bank should be required to pull together to stop kids swimming alone in the river.
岸上所有的救生员要齐心协力，防止孩子们单独在河里游泳。
Hindus purify themselves by bathing in the river Ganges.
印度教徒在恒河中浸泡借以涤罪。
Children must be told not to swim in the river.
必须告诉孩子们不要下河游泳。
Our parents won't allow us to swim in the river alone.
我们的父母不允许我们单独去河里游泳。
During the summer vacation, we mustn't go swimming alone in the river.
暑假期间，我们不能一个人去河里游泳。
It was a hot day, so they took off their shoes to put their feet in the river.
那天天气很热，所以他们脱掉鞋子把脚伸进河里。
In the Eastern Jin Dynasty people often took a bath in the river on that day to wash away bad luck.
在东晋时期，人们经常在这一天到河里洗澡，以洗掉坏运气。
In Wolfen, where ORWO was manufactured, people said you could develop the film by dipping it in the river Mulde.
在ORWO 的产地沃尔芬，人们说你可以把胶卷浸在穆尔德河里冲洗。
Other adventures included swimming in the River Thames, sleeping outside on a hill, and going on a mountain biking trip.
其他的探险包括在泰晤士河游泳、在山上睡觉、以及山地自行车骑行。
This could cause rapid growth of water plants in the river, which can lead to the water ways getting clogged with organisms, which can change the flow of the water.
这可能会导致河里的水生植物快速生长，从而导致水道被生物体堵塞，从而改变水流。
She told us that after the water conservation project was completed, a policy was made to encourage more people to increase the fruit production with clean water in the river.
她告诉我们，水利工程完成后，政府出台了一项政策，鼓励更多的人用河里干净的水来增加水果产量。
He was 6 yelling and throwing rocks in the river.
他一边嚷嚷着一边往河里扔石头。
placed in a basket lined with tar, put in the river, and so on.
他也被装在一个涂了柏油的篮子里，放在河边等等。
An Alaskan brown bear nods off in the river after catching some salmon.
捉了几条大马哈鱼之后，这只阿拉斯加棕熊在河里打起盹来。
And more soil in the river means less on the land, which means poorer farmers.
越来越多的泥土流入长江，土地变得贫瘠，农民首当其冲。
I breathed the fresh air on the mountain and sometimes I went swimming in the river.
我在山上呼吸新鲜的空气，有时在河里游泳。
The factory has been dumping its waste in the river. As a result, the river is polluted.
该工厂一直将其废弃物倾倒在那条河里。结果，那条河被污染了。参考答案
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