n.影響；沖擊力；撞擊
vt.擠入；壓緊；撞擊；對 ... 發(fā)生影響
vi.沖擊；撞擊；產(chǎn)生影響
Seasonality or economic cycles will have minimal impact on secular trends. 季節(jié)性或經(jīng)濟(jì)周期兩者對長期趨勢的影響都不大。
But what these people fail to see is that international tourism may bring about a disastrous impact on our environment and local history. 但是這些人忽視了國際旅游可能會(huì)給當(dāng)?shù)丨h(huán)境和歷史造成的災(zāi)難性的影響。
The impact of the crash hurtled the driver against the windshield of the car. 碰撞的震力使駕駛員猛撞于車子的擋風(fēng)玻璃上。
The impact of the stone against the windowpane shattered the glass. 石頭撞擊窗戶打碎了玻璃。
用作及物動(dòng)詞 (vt.)A vast crowd impacted the square. 廣場上擠集了一大群人。
These are to protect the pilot from side impact. 這些都是為了保護(hù)試點(diǎn)從側(cè)面撞擊。
This tennis racket absorbs shock on impact. 這個(gè)網(wǎng)球拍能減輕撞擊所產(chǎn)生的劇烈震動(dòng)。
Tight fitting clothes like jeans also impact fertility, he said. 他說,牛仔褲之類的緊身衣褲同樣對生育力有影響。
用作不及物動(dòng)詞 (vi.)The company's performance was impacted by the high value of the pound. 公司的業(yè)績受到了英鎊高值的沖擊。
The ball impacted against the bat with a loud noise. 球撞擊著球棒發(fā)出很大的響聲。
It is obvious how bad movies will impact on children. 壞電影對兒童會(huì)產(chǎn)生什么影響是顯而易見的。
The embargo impacted on export revenues. 禁運(yùn)對出囗總收入有很大的影響。
impact主要指“沖擊，對主語碰撞的影響”，如the impact of science on/upon modern development（科技對于現(xiàn)代發(fā)展的影響）。注意句中science后的介詞用on或upon；
impact作名詞時(shí)，其所在的句子常用過去時(shí)。 The book made much impact.這本書的影響力很大。
adj.有效的；有沖擊力的
n.沖擊器(臥式鍛造機(jī)；硬著陸宇宙飛船)
n.裝緊；壓緊
