说真的的英文：
by my faith
upon my faith

参考例句：

Guys, seriously, it's gonna get...
伙计们, 说真的...

"in faith (=by my faith, upon my faith)"
实在!说实话!说真的!的确!

Truly I have been very unsophisticated in my ambitions.
说真的，我的志向是非常纯正的。

She’s better than ninety-nine folk out of a hundred, I tell you!
说真的，她这人真是百里挑一！

The element of fraud, indeed, permeated American life.
说真的，当时渗透在美国生活中的尽是些假货。

"I do not think his lecture is very interesting, actually. "
说真的，我觉得他讲的课没趣。

In all truth, I feel the credit must go to the director.
说真的，我觉得荣誉应归于导演。

I mean, really, which would you rather have – a grilled Texas ribeye, or a piece of squash?
我的意思是，说真的，一块德克萨斯烤牛排，或一块南瓜，你宁愿选哪个？

"Are you a Liberal or a Conservative?" "Neitger really: betwixt and between."
“你是自由党党员还是保守党党员？”“都不是，说真的。我是中间派。”

Indeed, there is a succession here, from Mrs. Stowe to jewett and then to Willa Cather
说真的，我们在这里可以看到，从斯托夫人到朱厄特，再到威拉?凯瑟是一脉相承的。

faith是什么意思：
n. 信任，相信，宗教信仰，宗教，诚意，善意

As faithful as a dog.
像狗一般的忠诚。

"in faith (=by my faith, upon my faith)"
实在!说实话!说真的!的确!

Faith, which does not doubt is a dead faith.
没有怀疑的信念是无生命的信念。

Love asks faith, and faith asks firmness.
爱情要求忠诚，忠诚要求坚定。

Faith is stronger than reason.
宗教信仰比推理劝说更具威力.

upon是什么意思：
prep. 在...上；紧接着；逼近；根据；走上...；爬上...

He stepped upon the alter.
他走上圣坛。

To bear hard upon;press.
使痛苦不堪对某人施加困难；逼迫

press hard upon
进逼|压迫|穷追

call upon; call on
应用;访问;号召;呼吁

Lay stress on / upon
着重,重视