Stopwatch is a typical digital circuit. 秒表是一種典型的數字電路。
His staff of experts, each armed with clipboard and stopwatch, studied individual workers with a view toward eliminating unnecessary movement. 他的專(zhuān)家組每人配有帶彈簧夾子的書(shū)寫(xiě)板和秒表用來(lái)研究每個(gè)工人，使他們不能偷懶。
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