例句與用法

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1. passengers travelling without a valid ticket or without ticket
   四）未持有效車票或無票乘車
2. valid tickets must be purchased for practice and comply with the time schedule
   所有試車必須購買試車票，試車票只適用于同一時段，同一時段可多次使用。
3. berlin, like most german cities, uses an honor-based system where undercover controllers only occasionally check whether passengers have valid tickets
   同許多的德國城市一樣，柏林使用一種誠信為本的系統(tǒng)，只有便裝乘務(wù)員會偶爾檢查是否乘客買了票。