如果你决定要去参观动物园，请在进去之前确定他们是否坚持了世界动物园和水族馆协会的道德标准。
If you decide to visit a zoo ask whether it adheres to the World Association of Zoos and Aquariums' Code of Ethics before you enter.
如果你决定要去参观动物园，请在进去之前确定他们是否坚持了世界动物园和水族馆协会的道德标准。
If you decide to visit a zoo ask whether it adheres to the World Association of Zoos and Aquariums' Code of Ethics before you enter.
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