有效 | [有 效] effective; in effect; valid #701 [Add to Longdo] |
有效期 | [有 效 期] period of validity; sell-by date #12,660 [Add to Longdo] |
有效性 | [有 效 性] validity #13,358 [Add to Longdo] |
否有效 | [否 有 效] inefficient [Add to Longdo] |
经济有效 | [经 济 有 效 / 經 濟 有 效] cost-effective [Add to Longdo] |