我们应该竭尽全力保护我们宝贵的淡水资源，因为没有淡水我们无法生存。
We should make every effort to protect our valuable drinking water, for we can't live without it.
各公司竭尽全力保护他们的商标和徽标。
Companies go to great lengths to protect their trademarks and logos.
我们必须尽全力保护老虎和它们的生存环境。
We must do our best to protect the tigers and their living environment.
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