1、The scientists found the music and images caused people's moods to fall across the board.
科學家們發(fā)現(xiàn)傷感的音樂和圖片讓人的情緒一落千丈。

2、He happened to fall across Helen that day in the street.
他那天在街上偶然遇見海倫。

3、Soon turmoil will fall across the lands.
很快混亂會從天而降遍及大地。

4、I happened to fall across her the next day in the park.
第二天我在公園里偶然遇到她。

5、Second, we fall across rational problems when we solve entironment problems by the technology.
二是用科學技術解決生態(tài)環(huán)境問題時遇到的理性難題；

fall across翻譯