- vi. 走原路, 由原路返回
- 改
主意, 取消诺言, 
,
尔
尔
: backtracked, backtracking, backtracks
义词
v. 联想词
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banc,
banca,
bancal,
bancassurance,
bancha,
banco,
bancor,
Bancroft,
band,
band width,
相似单词
backtalk,
backtender,
backthrusting,
back-to-back,
back-to-nature,
backtrack,
backtracking,
backup,
back-up,
backup file,