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
I was in the smoking section.
我原本坐在吸烟车厢的。
Me too. I was hoping we could finish copying this report today.
我也希望如此，我本来希望今天我们能复印完这份报告。
If one law is changed, then people will later want to change other laws.
要是变更了一条法律，那么人们还会要变更别的法律的。