为节省本会行政支出，本会将收取以信用卡付款者，每单交易3%。

To reduce our administration expenses , a 3% handling charge will be charged for every payment paid by credit card.

即各种来源的总收入，减去所有的业务和行政支出（不包括折旧、利息、其他非现金费用和债务费用以及税）。

The gross income from all sources less all operating and administrative expenses, excluding depreciation, interest, other non-cash charges and other charges on debt, and taxes.