Trace chemistry
[化] 痕量化学
🧩 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
chemistry
['kɛmɪstri]
n. 化学;物质的化学组成（或性质），化学作用（现象）;（常指有强烈性吸引力的）两人间的关系;〈比喻〉神秘的变化（过程）;
chemist药剂师+ry...业 →化学
🗣️ 情景例句
My parents set aside a college savings fund for me.
我的父母为我存了一笔上学的费用。
What are you gonna do?
你打算怎么办？
One day she came into his office and happened to put her hands on the door of a locked safe.
一天，维拉走进父亲的办公室，偶然把手放在一个锁着的保险柜的门上，