善于: to be good at, to be adept at...
卧铺: a bed (on a train), a couchette...
账单: bill...
区分: to differentiate, to draw a distinction, to divide into categories...
珍珠: pearl...
从来: always, at all times, never (if used in negative sentence)...
负面: negative, the negative side...
外汇: foreign (currency) exchange...
绽放: to blossom...
