He taught his children to practise / practice the virtues of temperance and chastity.他教育孩子们要兼修节制与贞洁之德。He is specializing in the hurdles and broad jumping and sidelining in the high jump.他专攻跨栏和跳远，兼修跳高。He's taking courses in both the sciences and the humanities.他正在兼修自然科学和人文学科的课程。