A trace
[电] A扫描轨迹
🧩 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
I understand you used to be in the construction business,
听说你过去从事建筑业
When guns speak it is too late to argue.
待到炮声响，辩论已莫及。
Good afternoon.
下午好。