fortify

1. V-T To fortify a place means to make it stronger and more difficult to attack, often by building a wall or ditch round it. (常通过筑墙、挖沟等) 巩固 (某地)

...soldiers working to fortify an airbase in Bahrain. …在巩固一个在巴林的空军基地的士兵们。

2. V-T If food or drink is fortified, another substance is added to it to make it healthier or stronger. (通过添加另一种物质而) 强化 (食品或饮料)[usu passive]

Choose margarine or butter fortified with vitamin D. 选择人造黄油或用维生素D强化了的黄油。

All sherry is made from wine fortified with brandy. 所有雪利酒都是由用白兰地强化了的葡萄酒制成的。