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
Certainly.
当然。
Our standardized packing has been approved by many foreign clients.
许多国外客户已经认可了我们标准化的包装。
Notices forbidding the open-air drying of clothes, or the use of water points for car washing,
禁止露天晒衣服、禁止用水龙头冲洗汽车的布告