1．contradict vt.与……发生矛盾，与……抵触→contradictory adj.相互矛盾的；对立的；不一致的
2．infect vt.使感染；传染→infection n．感染；传染
3．prove vt. 证明；检验→proof n．证据；证明；检验
4．intervene vi.干涉；干预→intervention n．介入；出面；干涉
1．suspect vt.& vi.怀疑；疑有；不信任 n．犯罪嫌疑人；可疑对象 adj.可疑的；不可信的
①I suspect (that) you once thought otherwise. vt.怀疑
②Two suspects are now being interrogated in connection with the killing. n.犯罪嫌疑人
③His reason for being absent is suspect. adj.可疑的
