In my mind, mankind should keep ecological balance and protect the animals, because they are their friends and it is their duty to take this.
我觉得人类应该保持生态平衡，保护动物，因为动物是他们的朋友，也是他们的责任来承担这一点。
In my mind, mankind should keep ecological balance and protect the animals, because they are their friends and it is their duty to take this.
我觉得人类应该保持生态平衡，保护动物，因为动物是他们的朋友，也是他们的责任来承担这一点。
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