false tube

例句：

1. 1. The false tube was a source of concern for the team.
   这个假管是团队的担忧所在。
2. 2.The doctor removed the false tube and replaced it with a real one.
   医生移除了假管，并用一个真正的管子替换了它。
3. 3.The false tube had caused the patient significant discomfort.
   这个假管给病人带来了相当大的不适。