天是蓝蓝的，空气是干净的。

The sky is blue and the air is clean.

youdao

新鲜空气和干净的食物两者对我们是不可缺少的。

Both fresh air and clean food are indispensable to us.

youdao

绿色的树，五彩缤纷的花朵，干净的水甚至是新鲜的空气。

The green tree, the colorful flower, the clean water even the fresh air.

youdao

可以确定的是，那里的空气不干净。

What is clear is that the air isn't clear.

youdao

更重要的是，早晨的空气干净清新，这样我就能在课堂上保持一颗清醒的头脑了。

What's more, the air in the morning is really fresh and clean, so I can keep my mind clear and sound in the class.

youdao

地球是我们的家园，我们必须保持陆地、空气和水的干净。

The earth is our home. We must keep the land, air and water clean.

youdao

农村的空气是那么干净和天天早上，我能享受它。

The air is so clean in the countryside and I can enjoy it every morning.

youdao

农村的空气是那么干净和天天早上，我能享受它。

The air is so clean in the countryside and I can enjoy it every morning.

youdao