谢谢 这句的英文翻译亚 比较急目前,国航订票处说他们有5月1日、5月3日北京飞瑞士的机票 但仓位是Y舱（高价仓位）.您目前定的5月5日的CA933是M舱,如果您需要重新定到5月1日的高价舱机票,需要交仓位的差价费RMB 4500.请别用翻译器 还有其他答案吗 谢谢啦 比较急

The China Airline ticket office said that they have tickets available at Y class (higher price class) on 1st,May and 3rd,May fly from Beijing to Switzerland. The ticket you booked is M class, CA933 valid on 5th, May. If you would like to departure on 1st,May and replace your ticket to higher class, RMB4500 is required according to the price differences.

Currently, Air booking office said they had on May 1, May 3 tickets but Beijing Feirui Shi Y position is the tank (high position). You are given on May 5 of the CA933 is the M Class, if you need to re-set to May 1 of the high price of accommodation is the need to pay the difference between positions cost RMB 4500.

Currently, Air China's booking office said they have tickets from Beijing to Switzerland for May First and May Third, but it is for class Y (High priced Class). Your present booked ticket for CA933 on May Fifth is class M, if you need to rebook it to May First's High priced Class ticket, you need to pay a total of RMB 4500 price differences.

At present,the tickets center of Air China said they had the tickets of flight from Beijing to Switzerland on May 1st and May 3rd. But it was Y Class（high price class). Now, what you've booked is the ticket of M Class of CA933 on May 5th. If you want to rebook the high price one on May 1st, you need to pay the price differences, which is 4500 RMBS.
自己译的，希望能帮上忙~~