英语口语1+1:Against the clock

【1+1英文】
Angela: "Mom, will you have time to help me with my homework today?"
Andy: "Sorry, I won't. I'll be working against the clock to finish my presentation."

【1+1中文】
安吉拉：妈妈，今天又时间帮我做作业吗？
安 迪：不好意思，我要赶时间完成我的报告书。

【1+1解析】
You are working against the clock when you are trying to finish your work within a limited amount of time.
中文意思：赶时间完成某件事情。