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
How long is this flight?
这趟飞行有多长时间？
He was so startled that he yelled.
他惊吓得高声喊叫。
While this was going on, Mr.Taylor was upstairs.
这开始发生时，泰勒先生正在楼上。