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
if people took the time to read.
只要人们肯花时间去阅读。
I'm good at it.
我做这个很在行。
Professor Ronald Bracewell, a leading American radio astronomer,argued in Nature that such a superior civilization, on a visit to our own solar system,