neutralize
neutralise, v [Tn]
1 take away the effect or special quality of (sth) by using sth with the opposite effect or quality 使(某物)無效; 中和
neutralize a poison,an acid 解毒、 把酸中和.
2 make (a region, country, etc) neutral by agreement; keep free or exclude from fighting (通過協議)使(某地區、 國家等)中立; 不使參戰
a neutralized zone 通過協議保持中立的地區.