on the back foot片语KK [ɑn ðə bæk fʊt] /ɑn ðə bæk fʊt/发音片语1处于守势、居于劣势、陷入被动英式The team spent the whole second half on the back foot.整个下半场,这支球队都处于守势。2使陷入被动、使措手不及与 put、catch 等连用Her sharp question put the minister on the back foot.她尖锐的提问让部长一时陷入被动。用这个字练口说→