We can't sit by and let it go on . 我们不能袖手旁观，不能任其自流。
2.
Do n't let things slide . 不要任其自流。
3.
We must n't be too strict with young people , nor can we let them do whatever they like . 对青年既不能约束过严，又不能一切任其自流。
4.
Such respects as its thought , emotion will of students , etc . may exert a passive influence , and will produce the bad consequence 它对学生的思想、情感、意志等方面都可能产生消极的影响，如果任其自流，会产生不良后果。
