It’s hard to carry it. 如何翻译，to 作何解释？

It's hard to die什么意思？ "It's hard to die"怎么解释？ it's hard to join the fray it's hard to navigate.中的to navigate是动词不定式吗？hard是什么成分？ It’s hard to make it to the top in show business. It's too hard to believe it.这个句子是病句.但如何理解? It's So Hard To Say Goodbye To Yesterday歌词 It's hard to imagine his cooking the dinner和It's hard to imagine him cooking the dinner区别 it"s too hard 找poul anka&celine dion - it's hard to say goodbye