make sure you don't lose your temper
还要保证不发脾气

make sure
确保；务必
Make sure you arrive home before 11.
务必11点之前回家。
lose one's temper
发火
Will you regret after you lose your temper each time?
你每次发火后后悔吗？

A:I can't stand the stupid guy any longer.It's unbelievable.
我再也受不了那个愚蠢的家伙了。真是不可思议。
B:My dear lady,take it easy.You should forgive a green hand like him.
亲爱的女士，别着急嘛。你应该原谅他那样的新手。
A:He does everything so mindlessly that he's going to drive me crazy.
他做事总是没脑子，都快把我逼疯了。
B:I suggest you talk with him and teach him how to deal with the problems.
我建议你跟他谈谈，教教他怎么处理问题。
A:I've told him how to do it several times,but he's never listened to me.
我已经告诉他好几次了，可他从不听我的。
B:Maybe you should communicate with him just like a friend and not a boss.
也许你应该像朋友而不是上司那样跟他交谈。
A:I always have difficulty in getting along with the staff.
我和员工总是很难相处。
B:Just take them for your good friends and have a talk with them as we do.Make sure you don't lose your temper.
就把他们当成你的好朋友，就像我们俩说话一样跟他们好好 谈谈。还要保证不发脾气。
A:I think that's a bad idea.I'd hate anyone here to think of me as a friend.
我觉得这个主意不太好。我讨厌这里的任何人认为我是他们的朋友。
B:All you have to do is respect the staff and their opinions.
你需要做的就是尊重职员和他们的观点。