What part(s) of the bodies of the animals are similar to the surroundings?
它们身材的哪一部分和周围的环境相似？
2
The pointed part(s) of an anchor that digs into the bottom when the anchor sets
下锚时，锚身上向底部钻动（以提供锚抓力）的尖端部分。
3
Partof Chang'e 4's mission (使命) is to see how a moon base could be built for humans, including exploring (探索) whether humans could grow food and other plant products there.