impact
n
1 [U]
(a) hitting of one object against another 撞擊; 沖擊; 碰撞
the impact of a collision 碰撞時的沖擊
The bomb exploded on impact, ie at the moment of collision. 炸彈在撞擊時立即爆炸.
(b) force with which one object hits another 撞擊力; 沖擊力
He collapsed under the full impact of the blow. 他受到重擊而倒下.
2 [C usu sing 通常作單數]
~ (on/upon sb/sth) strong impression or effect on sb/sth 對某人[某事物]的強烈的印象或巨大的影響
Her speech made a tremendous impact on everyone. 她的演說對大家震動很大.
the impact of new methods, technology, etc on modern industry 新方法、 新技術等對現代工業的巨大影響.
impact v
1 [I, Tn] press, drive or wedge (sth) firmly into sth; press, etc (two things) together 將(某物)壓入或插入另一物; (將兩物)擠、 壓、 塞...到一起.
2 [Ipr, Tn] ~ (on) sth (esp US) have an effect on sth 對某事物有影響. impacted adj (of a tooth) wedged in the jaw so that it cannot growthrough the gum normally (指牙齒)阻生的
an impactedwisdom tooth 阻生智齒.