Alternating trace
[计] 交替迹
🧩 词语组成解析
a. 交互的\\n[医] 交替的
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
Richard has a point. You're just beginning to look. Richard
说得对。你们只是开始看房子而已。
I'm gong to show him how to paint.
我正要指点他如何画画。
I have a headache, and she has a stomachache.
我头疼，她胃疼。