英语语法分析

Plastic poufs should be replaced at least every two months.

塑料浴花应该至少两个月更换一次。

'Also, because poufs take time to dry and may well retain dead skin cells, it's a potential source of infection,' said dermatologist Dr Sam Bunting.

“而且，因为浴花过段时间才能干，也许还留有死皮细胞，是感染的潜在来源，”皮肤病专家萨姆·邦廷说。