In langur society females rule the roost and take the lead when the family is on the move.

叶族群是雌性独揽大权，并且是举家迁徙的领队人物。

I have, as I explained to you, used black-faced langur because a specimen was accessible.

正如我向您解释的那样， 我使用黑脸叶是因可以获取标本。

But that stopped after keeping langurs in captivity became illegal.

但在圈养叶成法后，这种情况就停止了。

Officials found a partly successful solution four years ago. They hired 40 men to dress as langurs and make monkey sounds to try to scare the macaques away.

四年前，官员们找到了一个还算成功的解决方。他们雇了40个人扮成叶，发出子的叫声，试图把猕吓跑。