costless
adj. 不花钱的
近义词：gratis，free，gratuitous，complimentary，
英英释义
Adjective
- costing nothing;
"complimentary tickets" "free admission"
例句
- She reckoned she had cut her cost by half. 她估计她减少了一半的费用。
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- The cost of travel to the far east is prohibitive. 到远东旅游的费用高的令人不敢问津。
- In point of cost, we'll have to discuss it at the next meeting. 至于费用方面，我们只好留到下次会议再讨论。
- His parents balk at the cost of the guitar he want. 他想要那个吉他，但他父母看到吉他的价格却踌躇不决。
- He put the telephone bill down as a business cost. 他把电话费用作为办公费记下。