B trace
[电] B台描迹
🧩 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
Who's that?
谁呀？
One cannot get blood from a stone.
石头里抽不出血。
Are you going to have a party?
你要举行聚会吗？