drainage trap造句

例句与造句

1. Don t alter drainage traps and pipes
   切勿擅自改装去水管，
2. To maintain a clean environment , drainage traps should be filled with enough water and disinfected regularly
   去水渠的隔气弯管需要有足够贮水，还要定期消毒。
3. To maintain a clean environment , drainage traps should be filled with enough water and disinfected regularly
   保持环境生，去水渠的隔气弯管需要有足够贮水，还要定期消毒。
4. It's difficult to find drainage trap in a sentence. 用drainage trap造句挺难的