6 sentences

1. 他的块头是你的三倍。

   tā de kuài​tóu shì nǐ de sān​bèi.

   He's three times your size.

   Source: OpenSubtitles

2. 我的身体感觉重了三倍。

   wǒ​de shēn​tǐ gǎn​jué zhòng le sān​bèi.

   My body feels 3 times heavier.

   Source: OpenSubtitles

3. 我的房间是你的三倍大小。

   wǒ​de fáng​jiān shì nǐ de sān​bèi dà​xiǎo.

   My room is three times as large as yours.

   Source: CCMatrix

4. 他拥有的书是我拥有的三倍。

   tā yōng​yǒu de shū shì wǒ yōng​yǒu de sān​bèi.

   He has three times as many books as I have.

   Source: Tatoeba

5. 我们的人口大约是美国人口的三倍。

   wǒ​men de rén​kǒu dà​yuē shì měi​guó rén​kǒu de sān​bèi.

   Our population is about three times the size of the population of the United States.

   Source: United Nations

6. 大多数供应商会尝试向您收取当地价格的两倍或三倍。

   dà​duō​shù gōng​yìng​shāng huì cháng​shì xiàng nín shōu​qǔ dāng​dì jià​gé de liǎng​bèi huò sān​bèi.

   Most vendors will try to charge you double or triple the local price.

   Source: CCMatrix