It's good that Hannah's totally jazzed about her work, though.
jazz 兴奋

If you're not the cause of her ennui, then it stands to reason that you cannot make her happy.
it stands to reason 理所当然,那就是说

You know, it looks like a giant man-eating clam.
giant man-eating clam 巨蛤
就是海底超大的那种贝类,它以前有一个别名叫做man-eating clam杀人蛤,其实这是一个误区,正如Bren后面分析的这么大蛤蜊才不可能迅速合拢把人给吃了咧。

Now he's stuck in a hard place.
stuck between a rock and a hard place 左右为难
这里直接简化成了hard place了

I guess I'm rusty.
rusty 生锈了

Well, what he doesn't know, doesn't hurt him, right?
what they don't know won't hurt them 不知者不受伤

I find I am totally jazzed by your out-of-the-box lateral thinking.
out-of-the-box 不符合常规的思维,独创性

If you're taking orders, I'd like a six-foot four, 37-year-old male with a good income and no mommy issues.

This guy's off the grid.
off the grid 脱离生活
所谓的grid指的是电网,于是off the grid就是远离电网,可不就是脱离了实际生活了?

Well, that would put you out of business, wouldn't it?
put out of business 失业

All right, just simmer down there, uh...
simmer down 镇定,淡定 to become calm or peaceful

We got off on the wrong foot here.
get off on the wrong foot 开了一个不好的头

But they worked it out.
work out 找到解决方法

"An honest tale speeds best being plainly told."

"Truth is truth to the end of reckoning."

"There is special providence in the fall of a sparrow."

"By Isis, I will give thee bloody teeth," if thou with Robert paragon again.
原句是:By Isis, I will give thee bloody teeth, If thou with Caesar paragon again.——《亚历山大大帝》

"But were we burdened with like weight of pain, As much or more we should ourselves complain."

This is the short and long of it.
总而言之 the most important point