cost; expenditure; expense; CL:筆|笔[bi3],個|个[ge4]

Philadelphia, Pennsylvania; abbr. for 費拉德爾菲亞|费拉德尔菲亚[Fei4 la1 de2 er3 fei1 ya4]

to take a lot of trouble (over sb or sth); may I trouble you (to do sth)

to require effort; strenuous

to expend a great deal of effort

to waste; to squander

free (of charge)

expense; cost; to spend (time or money); expenditure

tip; gratuity

tuition fee; tuition; CL:個|个[ge4]