怎么翻译这几个词：

请教各位大虾，怎么翻译这几个词：

无所谓
无可奈何
多愁善感
不懂事
孝顺

所有跟帖： 

• 无所谓：Not big deal/Who cares?/I don't care/Nothing serious... -whatsthis- ♀ (0 bytes) () 01/21/2009 postreply 21:40:43

• 无可奈何：I just left him alone./I can't help him...等，视情景而定 -whatsthis- ♀ (0 bytes) () 01/21/2009 postreply 21:44:52

• 不懂事：She's a kid./He's immature./He's stupid/silly/naiive…… -whatsthis- ♀ (199 bytes) () 01/21/2009 postreply 21:57:19

• 多谢指教，太感谢了！ -胡天胡地- ♂ (0 bytes) () 01/22/2009 postreply 14:18:21