他有一种强有力的风度，令人尊敬。

He has a ___forceful manner that commands respect.

她是一位强势的领导者，总能表达清楚自己的观点。

She is a ___forceful leader who always gets her point across.

他强有力的论点说服了房间里的所有人。

His ___forceful arguments convinced everyone in the room.