step up
US /step ʌp/
UK /step ʌp/

短语动词
1.
加紧, 提高, 加快
to increase the amount, speed, or intensity of something
示例:
•
We need to step up our efforts to meet the deadline.
我们需要加紧努力以赶上截止日期。
•
The company decided to step up production to meet demand.
公司决定提高产量以满足需求。
2.
挺身而出, 承担责任, 采取行动
to take action when there is a need or problem
示例:
•
It's time for you to step up and take responsibility.
是时候你挺身而出并承担责任了。
•
When the team was struggling, the captain really stepped up.
当球队陷入困境时,队长真的挺身而出了。
在 Lingoland 学习这个单词