build a fire under somebody
催促某人
A:Hurry up! Time is money!
A:快点,时间就是金钱!
B:Don't build a fire under me. I know the importance of time.
B：别催我，我知道时间的重要性。
A:But you are too slow to follow them.
A:但你太慢了，跟不上他们。
B:Don't you see I'm trying my best?
B：你没看见我正在尽力吗?