常 chang adv. fequently; often 时常 shichang(often) 常常 changchang(often) 他们常在星期六晚上去看电影 tamenchangzaixingqiliuwanshangqukandianying(they often see films on saturday eveninds) invariable; constant 常温 changwen(normal temperature(between15'C and 25'C) 常青 changqing(evergreen) 常驻代表 changzhudaibiao(permanent representative)