几岁
how old are you? (familiar, or to a child)
脊髓
spinal cord; medulla spinalis
脊髓炎
myelitis; inflammation of spinal cord
嫁鸡随鸡
If you marry a chicken, follow the chicken (idiom); A woman should follow whatever her husband orders.; We must learn to accept the people around us.
嫁鸡随鸡,嫁狗随狗
if you marry a chicken follow the chicken, if you marry a dog follow the dog (idiom)