“封闭的”造句

窗户通常是封闭的。
Windows are usually sealed off.

他们接触的事不多，从这一方面来说这是个封闭的社团。
It is a closed society in the sense that they've not been exposed to many things.

宇宙究竟是开放的,还是封闭的?
Is the universe open or closed?

• #封闭的