I didn't actually say that you were lazy, but if the cap fits...

我并没有真的说你懒，但有则改之。

《牛津词典》

But if the flu does strike, quick action can help.

但如果流感真的来袭，迅速采取行动会对遏制流感有所帮助。

youdao

But if the product can't sell, then there's little use in expanding the factory.

但是如果产品卖不出去，那么扩建工厂就没什么用了。

youdao

But if the person who won your heart does not love you, then you are sure to have a broken heart.

VOA: special.2010.07.18

But if the soul is something immaterial, then that could continue to exist, even after the destruction of the body.

但如果灵魂是非物质的,那么它会继续存在,即便肉体已经被分解殆尽

耶鲁公开课 - 死亡课程节选

But if the weather is rainy, then we have to stay inside.

但要是明天下雨，我们就得待在室内了。

It depends on 实战 - SpeakingMax英语口语达人

But if the apertivo does not fill you up, head over the Arno River to the Oltrarno.

BBC: Florence for foodies

But if the patient can get by without insurance that rule doesn't mean anything.

FORBES: On The Cover/Top Stories

But if the art market is microscopic, where does that leave art investment funds?

FORBES: Are Investors Bullish On The Art Market?