!passion不是可数名词,因为passion是抽象名词为不可数名词,passion中文意思是n. 爱恋,情欲;激情,热情;酷爱,热衷的爱好(或活动等);盛怒,激愤;耶稣的受难(the Passion)
He's outgrown his passion for rock music.随着年龄的增长,他已对摇滚乐失去了热情。