left a mark

• v. 留下不可磨灭的痕迹

left a mark的用法和样例：

例句

用作动词 (v.)

1. Two weeks later, Becquerel noticed that uranium had left a mark even though not exposed to sunlight.
   两个星期以后，贝克雷尔注意到，即使不把它们置之于阳光之下，铀也会在底片上留下不可磨灭的痕迹。