once and for all片语KK [wʌns ənd fɔr ɔl] /wʌns ənd fɔɹ ɔl/发音片语1一劳永逸地、彻底地、一次解决地We need to settle this dispute once and for all.我们需要一劳永逸地解决这场争端。2最后一次、就此、从此I'm telling you once and for all: stop calling me at night.我最后跟你说一次:别在晚上打电话给我。用这个字练口说→