| ประโยคภาษาจีน : 中文句子 | 
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|  jī yóu机油  bì xū必须  jīng guò经过  guò lǜ过滤  bǎo chí保持  qīng jié清洁  yīn wèi因为  dāng当  fā dòng jī发动机  yùn xíng运行  shí yǒu时有  xǔ duō许多  zāng脏  de的  kē lì颗粒  jìn rù进入  jī yóu机油  yīn cǐ因此  jī yóu机油  lǜ qīng qì滤清器  bì xū必须  yǒu有  guī lǜ规律  de地  gēng huàn更换 | 
| Oil must be filtered and cleaned constantly since there are some dirt particles getting into the oil when the engine runs. Therefore, the oil filter must be regularly changed. |