![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
听力原文: It can get extremely noisy down here. The staff are supposed to wear ear protectors at all times but that's impossible if you need to talk to someone. The other things we have to contend with is dirt and dust. It's OK when we're not too busy but when there's a rush on there isn't time to clear up. (16)