The most important thing we can learn about water, however, is that we must protect it and use it wisely. Our future depends on it.
然而我们所了解到的关于水的事情中最重要的是：我们必须保护并合理利用它。我们的未来取决于水。
Boys and girls . Today we have reviewed the animal words and the sentences. You know that the animals are our good friends, so we must protect them.
同学们今天我们复习了有关动物的单词和句型，你们知道了小动物是我们人类的好朋友，我们一定要好好保护它们哦！
As humans, we must realize that there are balances in the environment that we don't understand and that we must protect.
作为人类，我们必须意识到环境中的有些平衡关系是我们所无法理解的，但我们却必须予以保护。
We must protect ourselves all the time.
我们必须时刻保护自己。
We must protect trees, flowers and grasses.
我们应该保护树木、花草。
We must protect these endangered animals before they become extinct.
在这些濒危动物灭绝之前，我们必须保护它们。
We must protect our parks and gardens and find more viable ways to ease traffic congestion in our cities.
我们必须保护我们的公园和花园，找到更可行的方法来缓解我们城市的交通堵塞。
We must protect their identities as vigilantly as they protect our security, and we must provide them with the confidence that they can do their jobs.
我们必须警惕地保护他们的身份秘密就像他们保护我们的安全一样，我们必须让他们满怀信心的继续工作。
We must protect primary farmland, keep the area sown to grain stable, improve the structure of grain varieties grown and increase the per unit area yield of grain.
要保护好基本农田，稳定粮食播种面积，优化粮食品种结构，着力提高粮食单产。
We must protect primary farmland, keep the area sown to grain stable, improve the structure of grain varieties grown and increase the per unit area yield of grain.
要保护好基本农田，稳定粮食播种面积，优化粮食品种结构，着力提高粮食单产。
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