It is our duty to keep our environment clean and tidy.
保护我们的环境干净和整洁是我们的责任。
It's our duty to keep our environment clean and tidy.
是我们的责任保持我们的环境干净和整洁。
It's our duty to keep our environment clean and tidy.
保持环境的干净与整洁是我们的责任。
We love our environment. Let's work together to make it clean.
我们热爱我们的环境。让我们一起劳动使它清洁。
We should let more visitors see our environment is very clean.
我们应该让更多的旅行者看见我们的环境是很干净的。
It is our duty to keep our environment clean and tidy.
保持环境的干净整洁是我们每一个人的职责。
Keep our environment clean and tidy.
保持我们的环境干净、整洁。
The future will see catalysts do even more to keep our environment safe and clean.
今后人们可以看到催化剂在使我们的环境安全和清洁方面会发挥更大作用。
They join environmental clubs. In the club, people work together to make our environment clean.
他们加入环保俱乐部并且在俱乐部中人们协同工作使环境清洁。
It's our duty to keep our environment clean and tidy.
保持我们的环境干净整洁是我们的责任。
We shall always keep our children and the environment clean.
我们要保持我们的孩子洁净，环境清洁。
Its our duty to keep our environment clean and tidy.
保持我们的环境干净整洁是我们的责任。
Shall we keep our environment clean?
游戏介绍我们应保持环境清洁？
We should try our best to keep the environment clean.
我们应该想方设法保持干净的环境。
First of all, doing something useful to keep our environment clean is necessary.
首先，做一些有助于保持环境干净的事是很必需的。
First of all, doing something useful to keep our environment clean is necessary.
首先，做一些有助于保持环境干净的事是很必需的。
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