焕发: to shine, to glow, to irradiate, to flash...
账: account, bill, debt...
牙齿: tooth, dental...
跳伞: to parachute, to bail out, parachute jumping...
耳闻目睹: to witness personally...
核能: nuclear energy...
扫墓: to sweep a grave (and pay one's respects to the dead person)...
扩展: to extend, to expand, extension, expansion...
回馈: to repay a favor, to give back, feedback...
地址: address...
