简直的英文：
simply
at all

参考例句：

It sounded incredible.
听起来简直不可思议。

I can't believe it.
我简直不敢相信

Plumb nonsense.
简直荒唐，愚蠢透顶。

She's just plain silly.
她简直傻透了。

G was absolutely astonished
G简直惊呆了。

The children thrilled with joy at the sight of the Christmas tree
孩子们一看到圣诞树简直欣喜若狂。

They could hardly make both ends meet and their debts were piling up.
他们简直没法维持生活，因而债台高筑。

She is swooning at equitation.
她现在对骑马简直入了迷。

That looks like a section of a diseased liver."
“这张简直就像一块有病的猪肝。”

The slum area was sordid and filthy beyond belief.
该贫民区之污秽肮脏简直令人难以置信。

simply是什么意思：
adv. 简单地；仅仅，只，不过；简朴地

Their opinions on art are simply for the Birds.
他们对艺术的见解真是荒唐可笑

It can't be simply ornamental．
它不能仅仅是装饰性的。

It was quite simply made.
这东西做得挺简单。

They live very simply.
他们生活得很简朴。

The gadget is simply marvelous!
这玩意儿简直好极了！

all是什么意思：
adj. 一切的，所有的；整个的；各种的
pron. 一切；全部；大家，全体
n. 全部财产；所有一切
adv. 完全地；极其

The policy of burn all,kill all,loot all
三光政策

It is all on the house.
费用全由敝店支付。

(all) in a twitter
(极度) 紧张[兴奋],激动

It will all be copper.
里面通通都是铜币。

They are all incompetents.
他们都是些不胜任的人。