什么是classical unemployment?能不能举个例子简单一些的.最好用英文写一下.

classical history 什么是classical unemployment?能不能举个例子简单一些的.最好用英文写一下. 请问enjoy为什么会变成enjoysDoes he enjoy classical music?He enjoys classical music.这里的enjoy有个s呢,enjoys是第三人称单数？什么是第三人称单数呢，就是加个s吗？ CLASSICAL MUSIC怎么样 classical series是什么意思 classical什么意思啊? classical-antiquity是什么意思 classical composer是什么意思 non-classical是什么意思? classical approach是什么意思 Classical eyeblink conditioning Mr Smith likes classical music. 对classical 提问 请教classic,classical的区别! classic和classical的区别 the revival of classical literature classical 与 traditional的区别 Famous Classical什么意思快 according to 和due to有什么区别?具体看题：为什么是according to 不是due to?__11____one classical theory of emotion,our feelings are partially rooted in physical reactions.