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
He is tough in doing everything.
他不管做什么事都很有毅力。
Hawaiians are used to the rumblings of the volcano.
夏威夷的人已经习惯于火山的爆发声了。
What happened before printing was invented?
印刷术发明以前是怎么一回事？