5 sentences for 管 (guǎn — tube)

1. 自来水管漏水了。

   zì​lái​shuǐ guǎn lòu​shuǐ le.

   The water pipe is leaking.

   Source: Dong Chinese Dictionary

2. 霓虹灯管里通常会充入氖气。

   ní​hóng​dēng guǎn lǐ tōng​cháng huì chōng rù nǎi​qì.

   Neon gas is usually filled into neon tubes.

   Source: Dong Chinese Dictionary

3. 用力挤压软膏管，药膏就出来了。

   yòng​lì jǐ​yā ruǎn​gāo guǎn, yào​gāo jiù chū​lái le.

   Squeeze the ointment tube hard, and the medicine will come out.

   Source: Dong Chinese Dictionary

4. 这些厚实的金属管能很快地把热传到室内。

   zhè​xiē hòu​shi de jīn​shǔ guǎn néng hěn kuài de bǎ rè chuán dào shì​nèi.

   These thick metal pipes can quickly conduct heat into the room.

   Source: Dong Chinese Dictionary

5. 冬天气温降到零下，户外的自来水管都被冻住了。

   dōng​tiān qì​wēn jiàng​dào líng​xià, hù​wài de zì​lái​shuǐ guǎn dōu bèi dòng zhù le.

   In winter, when temperatures drop below freezing, the outdoor water pipes all freeze up.

   Source: Dong Chinese Dictionary