v.增加；升高；加強

A weakened immune system does not heighten the risks of catching a cold. 一個弱免疫系統是不會增加感冒的感染可能性的。

The financial management must be strengthened so as to heighten economic profits. 要提高經濟效益，必須加強財務管理。

So it is urgent for curriculum reform to reinforce teachers' team building and heighten the integrated quality of teachers. 加強教師隊伍建設，提高教師的整體素質，是新課程改革的迫切要求。

heighten的基本意思是“(使)變高”“(使)增大”“(使)加強”,既可用作不及物動詞,也可用作及物動詞。用作及物動詞時,接名詞或代詞作賓語。