Riches' dog may receive the milk that a poor child needs to avoid rickets. 富人的狗可以得到窮人的孩子為了避免軟骨病而必須飲用的牛乳。
Rickets is now rare in the western world.But it is still a common childhooddisease in developing countries. 現在在西方國家軟骨病已經(jīng)很少見(jiàn)了,但在發(fā)展中國家卻仍是一種常見(jiàn)的兒童病。