The traffic accidents in the city decreased by 30% last year.The traffic accidents in the city decreased 30% last year.两句都对么?意思一样么?

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The traffic accidents in the city decreased by 30% last year.The traffic accidents in the city decreased 30% last year.两句都对么?意思一样么?
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The traffic accidents in the city decreased by 30% last year.The traffic accidents in the city decreased 30% last year.两句都对么?意思一样么?
The traffic accidents in the city decreased by 30% last year.
The traffic accidents in the city decreased 30% last year.两句都对么?意思一样么?

The traffic accidents in the city decreased by 30% last year.The traffic accidents in the city decreased 30% last year.两句都对么?意思一样么?
第一句是对的,介词by表示“减少了.”不可缺.介词to表示“减少到.”
第二句是错误的.

第一句的意思是：该城市去年交通事故减少了30%。
第二句的表达是错误的
(还有一种表达是:decrease to a%，意思是减少到百分之a）
希望采纳

第一句是对的，介词by表示“减少了......”不可缺。介词to表示“减少到......”
第二句是错误。

a traffic accident ＆the traffic accident有什么区别? the traffic accident happened on a rainy night.= the traffic accident ------ ----- on a rainy night The traffic accident happened on the highway 怎么译? The passenger was ______ hurt in the traffic accident.(serious) The terrible weathe l to the traffic accident 实在想不起来 A traffic accident happened in the street.The police arrived() the traffic accident happened on the Guangshen Expressway.(用英文解释）the traffic accident __ __on the Gangshen Expressway. luckily,no one died in traffic accident同义句 luckilluckily,no one died in traffic accident同义句luckily,no one ______ ______ _______in the traffic accident Tina was s____ injured in the traffic accident He had the traffic accident _____ a cold evening. one,be,hurt,in,accident,no,the,badly,traffic do you know what（ ）（ cause）the traffic accident I WAS LUCKY TO MISS THE TRAFFIC ACCIDENT 句子成分 I saw the traffic accident ____(happen)yesterday It was carelessness that c__ the traffic accident. It is lucky of her-------------------(survive)in the traffic accident who was sent____(cover)the traffic accident yesterday Betty came to slowly after the traffic accident.