He would resurrect his old eager ambitions and pursue them without faltering.

Those solemn but sweet organ notes had set up a revolution in him.

請(qǐng)問(wèn)老師句中的but怎么樣理解？什么詞性，使用方法，和含義？

solemn but sweet：莊嚴(yán)而悅耳的

but 是連詞，跟 and 有哪些用途一樣。意思上表示兩個(gè)事物或性質(zhì)上的相對(duì)或?qū)αⅰ１热纾?/p>

He is a serious but lively leader. 他是一個(gè)嚴(yán)肅而活潑的領(lǐng)導(dǎo)人。

“活潑” 和 “嚴(yán)肅”，意思相對(duì)。