backtrack;backslide;retreat;draw back;fall back;back away 该建议在某些问题上～了。The proposal backtrack on certain issues./一些成员指责…在这个问题上～。Some members accused …of backsliding on this issue./遇到困难决不～never shrink from difficulties/主动～ retreat on one’s own initiative/从已承担的义务～back away from one's commitment