Dual trace
[电] 双轨
🧩 词语组成解析
dual
['dju(:)əl]
adj. 双的，两部分的，二体的，二重的;
n. 双数;双数词;
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
Let's go for lunch. I'm buying.
去吃午饭吧， 我请客。
An inch in a miss is as good as an ell.
错无分大小，有错皆不好。
She sat near the window and asked questions about everything she saw.
她靠车窗坐着，对她所看到的一切都要问个明白。