Dark-trace tube
[电] 暗迹管
🧩 词语组成解析
dark
[dɑrk]
adj. 黑暗的;乌黑的;忧郁的;神秘的;
n. 黑暗;暗色;暗处;
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
IT is no longer the growth industry it once was.
信息科技业的增长不再像以前那样快。
A penny saved is a penny earned(or gained).
省钱就是赚钱。
and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace.
因此，尽管制造这些工具的人的骨头早已荡然无存，但远古时代的石头工具却保存了下来。