Don't let it get you down. it will be over with soon.
别为此烦恼。 事情很快就会过去的。
I'm sorry, I'm late, I got mixed up about your address.
非常抱歉,我迟到了,我把你的地址搞错了。
and since most medical men in the Health Services are overworked and have little time for offering time-consuming and little-appreciated advice on such subjects as diet,