Then you've grossly misjudged my sense of humor.那你真是高估了我的幽默感

sense of humor:幽默感

I like your sense of humor.

我喜欢你的幽默感。

She had no sense of humor.

她毫无幽默感。

And if not my apology, then at least accept the car.即使不接受我的道歉 至少接受那辆车吧

if not:不然的话, 要不是, 即使不

The present situation is nothing if not fine.

现在的形势好极了。

The holiday was nothing if not varied.

假日活动极其丰富多彩。

at least:至少

She may be slow but at least she's reliable.

她迟钝是迟钝，但无论如何她很可靠。

He should at least have come to say good-by.

他至少也该来道个别(然而却没来)。