Orthopsida
直瘤海胆目
🗣️ 情景例句
I'm not sure I'm up to it.
我不能肯定我是否能做得来。
On many farms you'll find cows and chickens.
在许多农场上你将发现奶牛和鸡。
The plane was late and detectives were waiting at the airport all morning.
飞机误点了，侦探们在机场等了整整一上午。