greaten

例句：

1. 1. The company's profits have greatly increased since the new policy was implemented.
   自从实施了新政策后，公司的盈利大大增加。
2. 2. The garden has been greatly enlarged with the addition of a greenhouse.
   花园通过添加温室已经大大扩展了。
3. 3.The team's morale has greatly strengthened after their recent victory.
   在最近的一场胜利之后，团队的士气大大增强。