卡丁车是一项高强度的运动。

Go-karting is a high-___intensity sport.

音乐的强烈节奏让所有观众都兴奋起来。

The ___intensity of the music's rhythm got all the audience excited.

请降低电视的音量，声音的强度太大了。

Please turn down the TV, the ___intensity of the sound is too high.