What´s the difference between 如果 and 只要...就
I have a little confusion between this two sentences (and I´m not completely sure if the second is correct):
只要你吃完所有的菜，我就让你去外面玩儿。
如果你吃完所有的菜，我让你去外面玩儿。

如果 and 只要 have a similar use, what do both of them exactly emphasize?

谢谢你答案我 :)

Question

What´s the difference between 如果 and 只要...就
I have a little confusion between this two sentences (and I´m not completely sure if the second is correct):
只要你吃完所有的菜，我就让你去外面玩儿。
如果你吃完所有的菜，我让你去外面玩儿。

如果 and 只要 have a similar use, what do both of them exactly emphasize?

谢谢你答案我 :)

Answer

"只要A，就B" = "B, only if A", or "B provided that A" 
The emphasis is on the condition A.

"如果A, B" = "If A, B"
The emphasis is on the consequence B.

Answer

I would say.如果 is " if ".只要 is "only if"

Answer

“只要”  It is like bet.   
“如果”  It is like consult.  
如果 is more softer than 只要， also more mild.
Futhermore 谢谢你回答我。
My English is not good, I hope you can understand.

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