送交者: blackbox 于 2009-07-20, 20:32:54:
回答: 实际问题:儿子暑假每天室外游泳训练,晒得黑黝黝的, 由 湘女 于 2009-07-20, 15:58:14:
"The damage that occurs during childhood or adolescence may not become apparent until middle age"
(http://www.medicalnewstoday.com/articles/29176.php)
(http://www.mayoclinic.com/health/skin-cancer/DS00190/DSECTION=risk-factors)