"strong"的比较级是"stronger"，最高级是"strongest"。以下是一些例句：

1. She feels a strong sense of responsibility towards her employees. 她对雇员有很强的责任感。

2. It helps your bodies use energy more efficiently. 这有助于你的身体更有效地使用能量。

3. His brother is stronger than him. 他的哥哥比他更强壮。

4. She's stronger than you'd expect. 她比你所期望的要强壮。

5. Mitt Romney is otherwise a strong candidate. 米特·罗姆尼是一个强有力的候选人。

6. The elephant is the strongest animal in the world. 大象是世界上最强壮的动物。