back to square one片语KK [bæk tu skwɛr wʌn] /bæk tu skwɛɹ wʌn/发音片语1回到原点、从头开始、前功尽弃口语The deal fell through, so we're back to square one.交易破局了,我们又得回到原点。用这个字练口说→