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
It's easy to pick something for my colleagues, but it's difficult for my boss.
给同事们的应该不难买，但是给老板的就难罗。
What is that noise?
那嘈杂声是什么？
She lives in Nigeria.
她住在尼日利亚。