Litopterna
滑距骨目
🗣️ 情景例句
When was it built?
它是什么时候建造的？
While Mike was an only child, he would amuse himself with his toys.
麦克还在孩提时，常常独自玩玩具取乐。
I'm sorry I don't know. You'd better ask that policeman over there.
对不起，我不知道。你最好问问那边的警察。