obligation是什么意思

"the source of obligation"是什么意思 make whole (obligation) cover obligation for delivery duty和obligation的区别? 英语翻译重点是no obligation. responsibility 和obligation都是可数名词吗? portion of capital lease obligation的意思 英语翻译应该用obligation 还是responsibility obligation under product or service warranty 英语区别,Obligation和responsibility的区别. responsibility,obligation和duty的区别 the lack of responsibility and obligation