Selective trace
[计] 选择跟踪
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
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
You're just wasting your breath.
你在白费口舌。
May I pay by credit card?
我可以用信用卡付款吗？
Many of the stars cannot be seen because they are too far away.
许多星星我们之所以看不见，是因为它们离我们太远。