attack是什麽意思

vt. vi. 攻擊，進攻，抨擊

n. 攻擊;抨擊;（隊員等的）進攻;（疾病）侵襲

vt. 抨擊;非難;侵襲;損害

[例句]Candidates have spent around $ 400 million each on attack advertisements during this campaign.

此次大選每位總統候選人花在攻擊性廣告的支出就達到了約4億美元。