When you walk up to someone on the sidewalk and you both try to move out of each other's way, and in doing so repeatedly¹ move into each other's way. 

 

当你在人行道与对面的行人迎面遇上时，你们双方都试图避开对方，但却总是恰好又挡住对方的路。

 

例句： 

"Why are you late?"

"I got stuck doing the sidewalk salsa."

“为什么你迟到了？” 

“我遇上了‘人行道萨尔萨’。”

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