8 sentences

1. 这个连接处的枢纽已经磨损了。

   zhè gè lián​jiē​chù de shū​niǔ yǐ​jīng mó​sǔn le.

   The pivot at this connection has worn out.

   Source: Dong Chinese Dictionary

2. 长期使用会导致机器零件的磨损。

   cháng​qī shǐ​yòng huì dǎo​zhì jī​qì líng​jiàn de mó​sǔn.

   Long-term use will lead to wear and tear of machine parts.

   Source: Dong Chinese Dictionary

3. 这个阀门里的瓣已经磨损，需要更换。

   zhè​gè fá​mén lǐ de bàn yǐ​jīng mó​sǔn, xū​yào gēng​huàn.

   The flap inside this valve is worn out and needs to be replaced.

   Source: Dong Chinese Dictionary

4. 自行车的后轮外带磨损得太严重了。

   zì​xíng​chē de hòu lún wài​dài mó​sǔn de tài yán​zhòng le.

   The outer tire of the bicycle's rear wheel is badly worn.

   Source: Dong Chinese Dictionary

5. 这台机器的轴承由于磨损需要更换。

   zhè tái jī​qì de zhóu​chéng yóu​yú mó​sǔn xū​yào gēng​huàn.

   The machine's bearings need to be replaced due to wear and tear.

   Source: Dong Chinese Dictionary

6. 这把老吉他的品格已经磨损得很严重了。

   zhè bǎ lǎo jí​tā de pǐn​gé yǐ​jīng mó​sǔn de hěn yán​zhòng le.

   The frets of this old guitar are badly worn.

   Source: Dong Chinese Dictionary

7. 由于使用时间过长，铅字的字面已经磨损了。

   yóu​yú shǐ​yòng shí​jiān guò cháng, qiān​zì de zì​miàn yǐ​jīng mó​sǔn le.

   The face of the lead type has worn down due to long-term use.

   Source: Dong Chinese Dictionary

8. 这种牛仔布料非常厚实，经得起高强度的磨损。

   zhè zhǒng niú​zǎi bù​liào fēi​cháng hòu​shi, jīng​de​qǐ gāo qiáng​dù de mó​sǔn.

   This denim fabric is very sturdy and can withstand heavy wear and tear.

   Source: Dong Chinese Dictionary