I will have to get my manager's approval
我需要得到经理的许可。

get one's approval.
得到某人的同意

A:I would like to withdraw my money and close my account please.
我想把钱都取出来，然后销户。
B:May I see your passbook?
我能看一看您的存折吗？
A:Here you are.
给您。
B:This is a sizable sum.Is there any reason you are closing your account with us Mr.Lee?
数量很大。Lee先生，为什么要销户呢？
A:I will be leaving the city soon so I have no need for this account.
我要离开这里了。所以这个账户也没必要了。
B:I see.Well,for this amount I will have to get my manager's approval.
我明白了，这个数额需要得到经理的许可。
A:No problem.I'll wait over here.
没问题，我在这里等。
B:Thank you.This should be only a few minutes.If you would like,there is coffee by those sofas over there.
谢谢。只要几分钟。如果您需要，那边沙发旁边有咖啡。
A:Thank you.
谢谢。