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
This has been a hard course for me.
这门课对于我来说很难。
Catch the bear before you sell his skin.
大事未成时，莫开庆功宴。
We would lay less stress on 'facts and figures'and more on a good memory,
人们不会再重视"资料和数据"，而靠好记性、