无效: of no avail; to no avail; in ...果: fruit沮丧;无效果: fall flat无效果, 不灵验: to no effect无效果的: barren; fruitless; inert; resultless; sterile; unfruitful但是毫无效果: i tried losing weight but nothing worked空载的,无效果的: idle无效果无报酬: no cure no pay; no cure-no pay不起作用亳无效果: water off a duck’s back干,无效果声,直达声: dry完全无用,毫无效果: to no avail无效: of no avail; to no avail; invalid; null and void; nullity (合同等的); in vain; unavailability; ineffectiveness; inefficiency; futility; flop 宣布选举无效 nullify an election; 医治无效 fail to respond to medical treatment; 宣布决定无效 declare decision invalid; 无效的契约 an invalid contract; 无效投资 make the investment inefficient; 无效法律行为 nullity of juristic act; 无效分蘖 [农业] ineffective tillering; 无效功 lost work; 无效合同 invalid contract; 无效劳动 lost labour (in agricultural production); 无效期 adynamic stage; 无效诉讼 annulment suit; 无效条款 irritancy; 无效约因 infirmative consideration无效果无报酬为条件的救助合同: no cure no pay salvage contract无效它需要其它的法术效果: limited wish效果: 1.(产生的结果) effect; result 效果不大 not very effective; produce little effect; 效果显著 bring about a striking effect; be very effective; 取得良好的效果 achieve good results; 动机和效果的统一 the unity of motive and effect;医生开的那药没有效果。the prescribed medicine failed to take effect.2.[剧] sound effects无效它需要其它的法术效果,比如有限祈愿术: limited wish无效的;使无效;无效: null and void(无效)两种: net out包无效: invalid packet对无效: cut not much ice判无效: cancel取消;无效: avoidance使无效: abate; avoided; blank; deactivate - potentiate; defeasance; defeat; destroy; disannul; flaw; frustrate; individuation deactivate; invalidate; nullify; override; paralyze; repeal; rescind; rescission; void徒劳,无效: in vain无力;无效: impotence