We cannot just sit by and watch this tragedy happen.

我们不能坐视这样的悲剧发生。

《牛津词典》

We can't sit by and watch our planet destroyed.

我们不能坐视地球被破坏而不理。

youdao

"We can sit by and watch competitors steal our patented inventions, or we can do something about it," Apple CEO Steve Jobs said in a press release.

苹果总裁Steve Jobs在媒体发布会上说：“我们可以坐视竞争对手窃取我们的专利发明，也可以采取点行动。”

youdao

just to sit outside and have a coffee and watch the world go by, and...

就在室外坐着，喝一杯咖啡，观察周围的一切，然后……

科芬园的氛围 - SpeakingMax英语口语达人

They're not going to sit by and watch themselves be put out of economic business, as it were, by being deprived of their labor force.

NPR: The Hidden Costs and Benefits of Illegal Immigration

When the Pelosi video was released, I simply could not sit by and watch personal attacks being levied by my own party without speaking out.

CNN: Commentary: Don't let politics get personal

It is by no means an easy goal, nor is its success ensured, but the majority of Syrian women I have met over the last two years through my reporting are not going to sit silently by and watch while their freedoms are stolen from them or their future dictated to them.

CNN: Syria's women: Fighting a war on two fronts