If only the word if makes 一直想知道这句话的意思呢~TELL ME PIEASE~

If only the word if makes 一直想知道这句话的意思呢~TELL ME PIEASE~ There is a word of five letters.If you take away two letters,only one remains.What is the word? only if/if if only ,if necessary only if if u read the only sentence,u cannot t_______ what the word's meaning is在横线处填空 If only as in the beginning sees Only If I Ever Had The Chance “If.If.If...If.But there is no If in the world.Only aftermath and result”是什么意思? There is a word of five words.If you take away two letters,only one remains.What is the word?要中文和英文的回答, If only和Only if区别是什么 if only only if有什么区别 only if 和 if only怎么样区别? If only和Only if区别是什么 if only 与only if 的区别 if only 和only if 的区别 If only you could see the tears In the world you left behind If only you If you read only the first sentence,you cannot what the word's meaning is.以给出的字母作开头，补充问号的内容