that was close!

(also that was a close one!)

used when something bad almost happened, but you managed to avoid it

好险!

When we packed up the tent in the morning, he showed me bear tracks, saying " That was a close one!"

我们早上收帐篷的时候，他一边让我看熊的足迹，一边说：“好险!”

That was close—that car nearly hit us.

啊!好险!那辆车差点儿撞上我们。