求翻译：第一次购买洗衣卡需要支付50元，其中包含35元10次洗衣费（每次3.5元）和15元的卡费；第二次购买洗衣卡，如果能交回原洗衣卡，则仅需支付洗衣费35元。是什么意思？

First purchase laundry cards to pay 50 yuan, 35 yuan of which contains 10 laundry fee (each 3.5 yuan) and the card costs $ 15; second purchase laundry cards, if you can return it to the laundry card, you pay only Laundry costs $ 35.

Buy the first laundry card needs to be paid $50 million, of which contains 35 10 th Laundry fee (per meeting) and $3.5 million of the 15 card fee; the second purchase laundry card, if they can return to the original laundry card, this is only required to pay $35 Laundry fee.

The first purchase washes clothes the card to need to pay 50 Yuan, in which contains 35 Yuan 10 times to wash clothes spends (each time 3.5 Yuan) and 15 Yuan card expenses; The second purchase washes clothes the card, if can return washes clothes originally the card, then only must pay washes clothe

First laundry card purchase to pay $ 50 containing $ 35 10 laundry ($ 3.5) and card charges $ 15; second laundry card purchase, surrender if the original laundry card would only need pay a laundry fee $ 35.

Buy laundry card to pay $ 50 for the first time, which contains 35 10 laundry (-3.5) and the card fee of $ 15; the second buy laundry card, returned to the original laundry card if you can, you only need to pay a laundry fee of $ 35.