欢乐: gaiety, gladness, glee, merriment, pleasure, happy, joyous, gay...
可信: trustworthy...
公积金: official reserves, accumulated fund...
出差: to go on an official or business trip...
出道: to make one's first public performance (of an entertainer etc), to start one's career...
提高: to raise, to increase, to improve...
挠: to scratch, to thwart, to yield...
还原: to restore to the original state, to reconstruct (an event), reduction (chemistry)...
修车: to repair a bike (car etc)...
无偿: free, no charge, at no cost...
