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So Y is the distance they have to travel and TY2 is their transport cost.
所以Y是他们要走的距离,而TY2是交通成本
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$firstVoiceSent
- 来自原声例句
So Y is the distance they have to travel and TY2 is their transport cost.
所以Y是他们要走的距离,而TY2是交通成本
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