身子骨儿

tā de shēn zi gǔ r hái tǐng jiē shi

他的身子骨儿还挺结实。

He is enjoying good health.

mǔ qīn yǐ jīng duō suì le dàn shēn zi gǔ r hái tǐng jiē shi

母亲已经70多岁了，但身子骨儿还挺结实。

My mother is still going strong though she is in her seventies.

jìn lái yé ye de shēn zi gǔ r yuè lái yuè ruǎn

近来爷爷的身子骨儿越来越软。

Grandfather has been getting feebler lately.