"A close call" 指的是非常接近发生的危险或灾难，但最终幸运地避开了。加上的 "Talk about..." 是一种加强语气的表达，用来感叹情况的险峻。

• Talk about a close call! That car almost hit us when it ran the red light.
• I managed to submit the report just one minute before the deadline—talk about a close call.
• The branch fell right next to where she was standing; talk about a close call.