They also say gang members have launched several grenade attacks against shop keepers who have refused to pay.

警方称这些团伙成员还对那些拒绝被敲诈的店主发动手榴弹袭击。

The alarm then alerted nearby shop keepers and others, who armed themselves with tools then encircled the attackers.

附近的店主和其他民众听到警报后拿着工具将袭击者包围。

I did. I used to be able to converse pretty much, basically converse with taxi drivers, shop keepers, people on the street if I ever got lost.

学了。我以前能说很多中文，我可以和司机、店主交谈，如果我迷路了我也可以在街上问路。