leaven /ˈlɛvən/ ( leavening, leavened, leavens )

• 1. 

  V-T If a situation or activity is leavened by or with something, it is made more interesting or cheerful. 给…添趣; 为…增色

  例：

  His interest in science and technology was leavened by a genuine passion for architectural history and theory.

  对建筑历史学和其理论的热爱使他对科学和技术的兴趣更加浓厚了。

  例：

  He found congenial officers who knew how to leaven war's rigours with riotous enjoyment.

  他找到了和他志趣相投的懂得用狂欢来冲淡战争的残酷的军官。