人老了,反应就变得有些迟钝。Rén lǎo le, fǎnyìng jiù biàn de yǒuxiē chídùn.As people age, their reactions become a bit slow.
他对别人的情绪很迟钝,常常说错话。Tā duì biérén de qíngxù hěn chídùn, chángcháng shuō cuò huà.He is insensitive to other people's feelings and often says the wrong thing.
天太冷,手指冻得有点迟钝,写不好字。Tiān tài lěng, shǒuzhǐ dòng de yǒudiǎn chídùn, xiě bù hǎo zì.It's so cold that my fingers are numb and sluggish and I can't write well.