czj5451
幼苗
共回答了20个问题采纳率:95% 举报
The blue whale is the biggest animal in the world, but it is also one of the most endangered animal in the world. Because people hunted whales, so that their survival becomes more and more difficult. But now people have realized the blue whale is on the verge of extinction, and has been developed to protect the plan.
1年前
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