Paper trail
能证明某人活动的纸质文件, 纸质追踪文件
🧩 词语组成解析
paper
['pepɚ]
n. 纸;文件;论文;文章;
vt.& vi. 贴纸;
vt. 包装，用纸覆盖;贴壁纸;提供纸张;[俚语] 提供免费入场券;
vi. 贴糊墙纸;发交通违章传票;
adj. 纸制的;似纸的;有名无实的;
trail
[trel]
vt. 跟踪，追踪;拖曳：让…拖或飘扬在后面;拖沓而行;跟在…后面;
vi. （在比赛等中）输;（尤指跟在他人后面）疲惫地走;（在比赛或其他竞赛中）落后;蔓生;
n. 足迹;臭迹;小径;一缕;
trail(draw)→拖；拉；追踪；尾随；踪迹；小径
🗣️ 情景例句
Lacks courtesy is ill-mannered.
不礼貌，举止不当。
We never know the worth (or value) of water till the well is dry.
井枯方知水可贵。
Suddenly, there was a slight trembling sound from below, and the captain went down to see what had happened.
突然，从船舱下部传来一声微颤音，船长走下船舱去查看究竟。