吃透英语课本，提升在校竞争力
v. 否定；取消；使无效
现在分词：negating
第三人称单数：negates
过去式：negated
过去分词：negated
He warned that to negate the results of elections would only make things worse.
他警告说否定选举结果只能使事态更加恶化。
Efforts to expand the tourist industry could be negated by reports that the sea is highly polluted.
有关海洋受到严重污染的报道可能会使拓展旅游业的努力完全白费。
His actions negate his previous promises.
他的行为否定了他之前的承诺。
His actions negate our efforts.
他的行为抵消了我们的努力。
vi.否定；否认；无效
deny
to no avail
vt.否定；取消；使无效
recall
n.对立面；反面
opposite
contrary
