應該幾時用thanks ,幾時用thank you呀?

其實這兩句的意思是完全相同的
但是 THANKS 是較為口語
THANK YOU 則較為正式
所以寫下時一般用 THANK YOU
說時便多數簡化成 THANKS

其實thanks and thank you 意思一樣!

兩者都可以用, thanks 是口語, thankｙｏｕ比較禮貌ｄ

thanks (n) 感謝,道謝
thank you(n) 謝謝你
就如thanks 的意思係唔同thank you , 意思上已經有所不同
thanks係noun,單獨解作多謝。
thank you 係是動詞加上受詞，這裡的受詞是"你"，可以是其他的東西。解作多謝你。
但係用既時候，分別就唔係好大
向人道謝時．．．(Amy)
1.Amy , thanks !
2.Amy , thank you!
我相信人地一定會有所明白
不過thank you 大多數人會用既多謝詞
hope my answer can help you , THANKS you give me some space to answer this 問題　

thanks係口語

Acutally both of them are same
But thanks are more casual... usually in oral speaking with friend or same level
Such as: Thank's Buddy
Thank you.. is a polite way... or to people is not to close
Such as: Boss said: Thank You Peter you did good.

Or.. 1 more word even more better... appreciate
eg. I appreciate for your help...