我会计时比赛的每一分钟。
wǒ kuàijì shí bǐsài de měiyī fēnzhōng 。
I will time every minute of the competition.
老师开始计时,我们要快速回答问题。
lǎoshī kāishǐ jì shí , wǒmen yào kuàisù huídá wèntí 。
The teacher started timing, we need to answer the questions quickly.
请你帮我计时,五分钟就够了。
qǐng nǐ bāng wǒ jì shí , wǔfēnzhōng jiù gòu le 。
Please help me time, five minutes is enough.