career
职业，事业，前途   

例句：
It is not easy to choose a career.
选择职业并非易事。

have a blind spot
不愿或不能看到的缺点
 
例句：
Every mother has a blind spot about her child.
每个母亲在她孩子的身上总有觉察不出的缺点。
 

You can't be serious.
你不是认真的吧。   

对话：
A: I will marry Mike next week.
B: You can't be serious. You have only known him for two months.
　
A：我下星期要和迈克结婚。
B：你不是认真的吧，你才认识他两个月呀。