Exocycloida
外环形棘皮目
🗣️ 情景例句
I know how you feel, but there's no need to go on and on about it.
我知道你的感受，可是也没必要这样没完没了。
The blouse no longer fits me.
这件衬衣不再合我身了。
Is Bill in, Sam?
萨姆，比尔在家吗？