thisjustwon'tdO理解Waiter,thisjustwon'tdo.Thiswine'sgotamostpecularflavor.求解thisjustwon'tdo这句什么意思为什么用将来时还有这里的JUST是什么意思还有DO代表什么?请英语高手帮我详细解释下

Question

this just won't dO理解
Waiter, this just won't do. This wine's got a most pecular flavor.求解
this just won't do这句什么意思 为什么用将来时 还有这里的JUST是什么意思 还有DO代表什么? 请英语高手帮我详细解释下

Answer 1

意思是"这东西或这办法真的无效" 或 "这东西或这办法真的没有用"
语意类似This doesn't work.
补充:
That will do.那就够,那就行了.
That won't do.那不行.