fall现在分词

　　例句：

　　We don't want this document falling into the wrong hands.

　　我们不想让这份文件落入不对路的人手里。

　　There is a general public perception that standards in schools are falling.

　　公众普遍认为，学校的水平都在下降。

　　Two children drowned after falling into the river.

　　两个孩子掉进河里淹死了。

　　The sign said 'Danger: falling rocks'.

　　警示牌上写着“危险：前有滚石”。