穿过一条繁忙的街道时，千万要小心。

You can never be careful while crossing a busy street.

youdao

当我们正要穿过一条到处是车的繁忙街道时，你突然拉着我的手喊道：“妈妈，抓住我。”然后带我安全地过了马路。

As we were about to cross a busy street that was filled with traffic, you took my hand suddenly and shouted, "Hang on to me, Mom," then led me safely across.

youdao