back-pedal

v (-ll-; US -l-) 1 [I] pedal backwards on a bicycle, etc 倒蹬（自行车等）. 2 [I, Ipr] ~ (on sth) (fig 比喻) withdraw from an earlier statement or policy; reverse one's previous action 背弃以前的言论或政策; 变卦: The Government are back-pedalling on their election promises. 内阁正在背弃它竞选时的诺言.

bachelor, bacillus, back, back and forth, back away, back down, back down off, back down/off, back number, back of, back out of, back road, back room, back seat, back talk, back up, back-bench, back-bencher, back-breaking, back-formation, back-up, back-yard, backache, backbite, backbiter, backbiting, backbone, backchat, backcloth, backcomb (also tease), backdate, backdrop, backer, backfire, backgammon, background, backhand, backhanded, backhander, backing,