nullify
v
(pt, pp -fied) [Tn]
1 make (an agreement, etc) lose its legal force 使(协议等)失去法律约束力.
2 make (sth) ineffective; counteract 使(某事物)无效; 抵销
How can we nullify the enemy's propaganda? 怎样才能抵销敌人的宣传?
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起,加拿大从1870年左右起,殖民者开始向西迁移,并把平原据为己有。
I'm afraid it is quite common that people steal things from their workplace.
恐怕人们在工作场所偷东西是相当普遍的。
To examine your skills and abilities still further, ask yourself this question: in the following three areas - skills with people, skills with information or skills with things - which are your best skills? Note that it is not enough to say to yourself,