Trace constituent
[化] 痕量成分
🧩 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
🗣️ 情景例句
Would you please account for these problems?
请你谈谈这些问题，好吗？
There have been many ups and downs in our marriage, but we still love each other.
我们的婚姻有很多坎坷，但我们依旧相爱。
always assuming,of course, that the sea is calm.
当然，这一切只有在大海风平浪静的情况下才有可能。