Trace fossil
踪迹化石
🧩 词语组成解析
trace
[tres]
vt. 跟踪，追踪;追溯，探索;探索;查找;
vi. 沿着一小径或道路前进;可以追溯的;
n. 痕迹，踪迹;微量，极少量;[植]（脉）迹;痕迹;
trace(draw)→回溯
🗣️ 情景例句
OK, let's begin. To our friendship!
可以，开始吧，为了友谊！
Many one says well that thinks ill.
口蜜腹剑者不乏其人。
Debbie's father will set out with her in a small boat.
黛比的父亲将乘一条小船同她一道出发。