4 sentences

1. 她小心翼翼地跨过门槛。

   tā xiǎo​xīn​yì​yì de kuà guò mén​kǎn.

   She stepped over the threshold very carefully.

   Source: CCMatrix

2. 你已经有2周没有出过门了。

   nǐ yǐ​jing yǒu2 zhōu méi​yǒu chū guo mén le.

   You haven't been out of the house in two weeks.

   Source: OpenSubtitles

3. 你今天出过门没？

   nǐ jīn​tiān chū guo mén méi?

   Have you been outside today?

   Source: OpenSubtitles

4. 什么东西穿过门，但是从来不进去或者出来？

   shén​me dōng​xi chuān guò mén, dàn​shì cóng​lái bù jìn qù huò​zhě chū lái?

   What goes through a door but never goes in and never goes out?

   Source: CCMatrix