2 sentences

1. 他急忙打开后门。

   tā jí​máng dǎ kāi hòu​mén.

   He hastily opened the back door.

   Source: CCMatrix

2. 我打开后门，站在一旁，好让他们进去。

   wǒ dǎ kāi hòu​mén, zhàn zài yī​páng, hǎo ràng tā​men jìn qu.

   I opened the back door and stood aside so that they could enter.

   Source: CCMatrix