4 sentences

1. 设置厨房计时器10分钟。

   shè​zhì chú​fáng jì​shí​qì10 fēn​zhōng.

   Set the kitchen timer for 10 minutes.

   Source: CCMatrix

2. 计时器五分钟前就响了。

   jì​shí​qì wǔ fēn​zhōng qián jiù xiǎng le.

   The timer went off five minutes ago.

   Source: OpenSubtitles

3. 别担心，计时器将在您打开此信件时开始。

   bié dān xīn, jì​shí​qì jiāng zài nín dǎ kāi cǐ xìn​jiàn shí kāi​shǐ.

   Don’t worry, the timer will start when you open this letter.

   Source: CCMatrix

4. 选择一个主题，设置一个计时器，然后开始写作。

   xuǎn​zé yī​ge zhǔ​tí, shè​zhì yī​ge jì​shí​qì, rán​hòu kāi​shǐ xiě​zuò.

   Choose a topic, set a timer and start writing.

   Source: CCMatrix