重点词汇
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行人
pedestrian; passerby
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倒数
count backwards; count down; reciprocal
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计时
timekeeping; timing; chronometry; time; keep time; clock; time-keep; reckon by time
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显示器
display
count-down pedestrian signal
行人
pedestrian; passerby
倒数
count backwards; count down; reciprocal
计时
timekeeping; timing; chronometry; time; keep time; clock; time-keep; reckon by time
显示器
display