Trace elements
[医] 微量元素
🧩 词语组成解析
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
n. 原理, 基础
🗣️ 情景例句
Are you going to live with them?
您打算和他们一起住吗？
Do you live down the street?
你在街尾居住吗？
but few us have had the opportunity to find out.
但很少有人能有机会去弄个究竟。