n.記秒表；跑表
How much are the stopwatch and the elcctronic timing pad altogether? 這個(gè)秒表和電子計(jì)時(shí)觸板一共多少錢?
Please prepare a stopwatch to record every runner's time. 請(qǐng)準(zhǔn)備好跑表記錄每個(gè)跑步者的時(shí)間。
