fort|forts

我们在Ft Worth度过了一个愉快的周末。

We had a great weekend in ___Fort Worth.

探险者在荒野中建立了一个堡垒作为补给站。

The explorers built a ___fort in the wilderness as a supply post.

古代士兵们在山顶建造了坚固的堡垒来抵御入侵者。

Ancient soldiers built strong ___forts on the hilltop to defend against invaders.