Etendue
集光率
🗣️ 情景例句
We'll finish the conversation when they go to the museum.
他们去博物馆之后我们再聊。
A dog will not howl if you beat him with a bone.
骨头打狗狗不叫。
It is no use doing what you like; you have got to like what you do.
干你所喜欢的事是没有用的，你得喜欢你所干的事。