It could be worse---为什么是不幸中的万幸的意思?

It could be worse---为什么是不幸中的万幸的意思? It could be worse为什么会翻译成不幸中之万幸? 为什么说台湾割让给日本是不幸中的万幸? 是If could be worse还是It could be worse? IT COULD BE WORSE怎么样 It could't be any worse. Nothig could be worse中文什么意思 It couldn't be worse 的汉语意思 If could be worse 翻译：The situation is bad,but it could be worse. How could it be是怎么会呢的意思吗? it could be that he was happy 的意思 it could be that +从句 是句型吗