experience既是可数又是不可数,当它表示经历的意思时,是可数,比如anexcitingexperience,alotofinterestingexperiences.当经验讲时是不可数名词。havealotofexperienceindoingsth.做某事很有经验。形容词experienced,意思是经验丰富的,有阅历的。beexperiencedindoingsth,anexperiencedteacher.