| 例句 |
costlessadjective not costing or charging anythingmaintaining a checking account with the bank is not the costless service that its advertising would have you believe complimentary, free, gratis, gratuitous nominalbestowed, donated, givenpro bonodiscretionary, freewill, optional, voluntaryhonorary, uncompensated, unpaid on the house paidcostly, dear, expensive, high |