Boy, it sure is hot.

好家伙，这天儿可真热。

《牛津词典》

Boy, it sure is hot!

嗬，真够辣的！

《牛津词典》

"It sure is," Papa agreed.

“的确是这样，”爸爸表示同意。

youdao

Experts say any device used to heat a home should be inspected to make sure it is working correctly.

VOA: special.2010.02.02

Now, the reason why I skipped it is I'm not sure this is the best way to look at the question.

我之所以没讲是因为,我不能肯定这是考虑这个问题的最佳方式。

耶鲁公开课 - 心理学导论课程节选

because it will give you an opportunity to say "I want to be sure that this is done, has been done"

因为用这个句型，你就能表达“我想确认这事会做到的，或者已经做到了。”

Make sure 课堂 - SpeakingMax英语口语达人

The price of energy was not a huge issue in 2001, but it sure is now.

NPR: Analysis: Congress And The Cost Of Energy

It sure is a topsy turvy world when emerging markets seem less risky than developed markets.

FORBES: Panic Selling Of US Treasurys Unlikely

It might not be a recession, but it sure is starting to look like one, especially in Europe.

FORBES: G20 Says No Threat Of Recession Yet