Back-track
由原路退回
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
track
[træk]
n. 小路，小道;痕迹，踪迹;轨道，音轨;方针，路线;
vt. 跟踪;监看，监测;追踪;
vi. 沿着轨道前进;沿着一条路走，旅行;位于一队列中;
track(draw)→足迹；轨道；线路；追踪
🗣️ 情景例句
Please send me a post card.
记住给我寄名信片。
How much is the excess baggage charge?
超额行李费多少钱？
In this way he was able to find out where they lived, how many chidren they had, and where they died and were buried.
就这样，他了解到祖先的住处，有多少孩子，死在何处，葬在哪里。