1. for a while 有一段时间
For a while, I felt that life was unfair and wished that this terrible thing had never ever happened.
有一段时间，我甚至觉得生活太不公平了，还妄想这样糟糕的事情根本未曾发生6rpQWoYy02vHy=D%。

2. call on sb. to do sth. 呼吁某人做某事
I would be willing to call on them to fortify their morale.
我会很乐意号召大家给他们打气加油的4GCtD20|^rm82N^Dw8。

3. rise through the ranks 一步一步往上爬
For many, it's either lose money making your own short or fetch coffee as a production assistant and try to rise through the ranks.
对于许多人而言，要么损失金钱拍摄自己的短片，要么当个助理给人端咖啡，然后尝试通过职位上升来获得机会x5-cU&M+cf7qLlbq3xKt。

4. caught off guard by 被问/打（或其他动词）了个措手不及
It was a rare moment: Barack Obama, caught off guard by a ten-year-old boy while in the public spotlight.
这是个罕见的时刻：奥巴马在众目睽睽之下，被一名10岁男孩问了个措手不及AWzX2HM!896=l。