His ardor for music is so strong that every performance is full of passion.

ardor 来自拉丁语 ardere（燃烧），指"炽热的热情"或"强烈的热爱"，常用来形容对某种活动或事业的强烈情感投入。这个词带有燃烧般的热情意象，强调情感的热烈程度。