Fran decided to spring-clean the apartment.
弗兰决定把房间彻底打扫一下。
As is known to all, using clean energy plays an important role in pollution reduction.
众所周知，使用清洁能源在减少污染方面发挥着重要作用。
They clean cages, play with the animals, feed and bathe the pets and take the dogs for walks.
他们打扫笼子，和动物玩耍，给宠物喂食和洗澡，还带着狗散步。
When Canadian teenager Ryan was six years old, his teacher told him that in many parts of Africa, there was no clean water.
当加拿大少年瑞安六岁的时候，他的老师告诉他，在非洲的许多地方没有干净的水。
They're trying to show clean, wholesome, decent movies.
他们在努力放纯洁、健康、正派的电影。
When the dolphins saw themselves in the mirror, they tried to clean the red marks off their bodies.
当海豚看到镜子里的自己时，它们试着擦掉身上的红色印记。
Gargle and clean your teeth after eating persimmon.
吃完柿子记得刷牙漱口。
A clean cyberspace will paint our lives more colorfully.
一个文明的网络空间将使我们的生活更加丰富多彩。
It's said that a clean conscience is a soft pillow, with which we can have sweet dreams.
据说，问心无愧像是一个柔软的枕头，有了它，我们就可以做甜美的梦。
He always keeps his room clean.
他总是把房间打扫干净。
多么干净整洁的房间啊！
Why not clean up your room at once?
为什么不马上把你的房间打扫干净呢？
道路多么干净啊！
Plants keep our air and water clean.
植物能保持空气清新和水源清洁。
You can also clean your room by yourself.
你也可以亲自打扫你的房间。
Trees reduce dust and help keep the air clean.
树木减少灰尘，有助于保持空气清洁。
Come and help clean up rubbish in our city parks!
来帮助清理我们城市公园里的垃圾吧！
The beautiful place has clean water and fresh air.
这个美丽的地方有着干净的水和清新的空气。
The teenagers clean up the city park every Saturday.
青少年们每星期六打扫市立公园。
They can make the world a clean and comfortable place.
他们可以把世界变得干净舒适。
Some volunteers are going to clean up the central park.
一些志愿者要去打扫中央公园。
The river was now so clean that fish swam happily in it.
现在河水很干净，鱼在里面快乐地游。
We can tell the old people stories and help clean their rooms.
我们可以给老人讲故事，帮他们打扫房间。
Our classroom is very clean and tidy because it is cleaned every day.
我们的教室非常干净整洁，因为它每天都被打扫。
I plan to help clean up the city parks to make the environment better.
我打算帮助清理城市公园，让环境变得更好。
Another great advantage of wind power is that it is a clean form of energy.
风能的另一个巨大优势是，它是一种清洁能源。
Before the new year, I helped my mother clean the rooms and wash our quilts.
新年前，我帮妈妈打扫房间、洗被子。
If we start keeping the school clean, there'll be less work to do on clean-up day.
如果我们开始保持学校清洁，在清洁日就可以少做一些工作。
I'll never forget the town in which there used to be a clean river and many big tall trees.
我永远不会忘记这个城镇，那里曾经有一条清澈的河流和许多高大的树木。
Yang Zhen was an honest and clean government officer during the Eastern Han Dynasty (25-220).
杨震是东汉时期（25年-220年）一位正直清廉的官吏。
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