his black doctors could not practise in hospitials

翻译一下

his black doctors could not practise in hospitials Mr.Black is [ ]weaker than his wife 翻译We have decied to call on Mr.Black sometime next week at his home,谢谢 we both have black hair,_____my hair is shorter than his. at the doctors是什么意思 doctors什么意思 Tom is the blank sheep in his family. He beat the little boy black and blue分别是什么谚语? what do doctors do?是什么意思? Black sea black是什么意思? black black heart