Circumstellar
a. 環(huán)繞恒星的
??? 情景例句
I'm sure the plan is viable.
我肯定這個方案行得通。
He tries to button his own shirt,but he can't do it.
他試著扣好他的自己的襯衫，但是他不能做到。
You've got a point there.
你的話很有道理。