幸亏的英文：
fortunately
luckily

参考例句：

luckily, the answer to this puzzle is very simple
幸亏这个难题的解答倒十分简单。

It is a blessing that you were not there.
幸亏你不在那儿

Mercifully,the weather help up.
幸亏天气帮忙。

It's a good thing we brought the umbrella.
幸亏我们带伞了.

Glad I brought my stunner.
幸亏我带了电击枪。

"Was happily bought three days since."
“幸亏三天前就买好了。”

He was blissfully unconscious of it all
他本人幸亏一点不晓得。

Ha! Ha! It was lucky. It was only me that heard you by chance.
哈哈！幸亏被我一个人偶然听见。

That you reminded me to take my overcoat is a good thing.
幸亏你提醒我带上大衣。

I made a fortunate choice and won!
我幸亏选择得对,结果赢了!

fortunately是什么意思：
adv. 运气好地，幸运地

The goddess of fortune.
命运女神

May good fortune attend you!
祝你鸿运当头！

Fortune smiled on him at last.
命运女神终於眷顾他了。

God sends fortune to fools
蠢人有蠢福

The house costs a fortune to maintain.
维修这幢房子花销不菲。

luckily是什么意思：
adv. 幸运地，运气好地

Luckily there was a taxi stand nearby.
幸好附近就有一个出租车候客处。

Luckily, figuring this out is one of the easiest things to do.
幸运的是，判定这个问题是一件极其容易的事情。

Luckily we just did a Title B inventory.
我们刚巧列出一个B项清单。

Luckily, a doctor happened to be on the spot when the old man collapsed.
幸运的是老人晕倒时恰好有位医生在场.

Luckily the kidney stone passed before she had to be hospitalized.
幸好这个肾结石在她必须住院之前化掉了。