形 （快乐） happy，glad，joyful，cheerful；动 enjoy，be glad to，[口]laugh，be amused；名 pleasure，enjoyment，a surname；副 （乐意） gladly，happily，willingly；

[例句] 这个组合的首张专辑一经推出便被盛赞为嘻哈乐的经典之作。 The group's debut album was immediately acclaimed a hip hop classic.

[例句] 摇滚乐自从朋克乐以后就已经过于商业化而缺乏新意了。 Rock'n'roll has become so commercialised and safe since punk.