489.made to order 定做的(衣服)
490.originate in from(=begin)起源于,由..引起
491.on the out skirts(of)在城郊
492.owe…to 把…归于…
493.on one's own(=along,without help)单独
494.of one's own 某人自己的
495.keep pace with 跟…齐步前进
496.go to great pains=take pains 下功夫,努力
497.part with(=give up,sell)舍弃,卖掉
498.participate in(=take part in)参加
499.(be)particular about 讲究,挑剔(吃,穿)