We no longer manufacture pure cotton shirts as their retail prices tend only to attract that upper end of the market.
我方已不再生产纯棉衬衫因为其零售价格只能吸引高档消费者。
But I'm worried about his Chinese.He may fall behind the other students when he comes back.
但我担心他的中文。等他回来后,他可能会落到其他同学后面。