Palaechinoida
古海胆目
🗣️ 情景例句
Do you want to sit by the window?
想靠窗坐吗？
When I get sleepy,I'll probably get ready for bed.
当我磕睡时，我将上床。
We were very much surprised when the snake charmer suddenly began to play jazz and modern pop songs.
当耍蛇人突然又吹奏起爵士乐和现代流行乐曲时，我们感到非常惊奇。