Razor edge
n. (剃刀)刃, 锐锋, 尖削的山脊
🧩 词语组成解析
edge
[ɛdʒ]
n. 边;优势;（悬崖、峭壁的）边缘，端;锋利，尖锐;
vt. 在…上加边界;使渐进;给（刀刃）磨边，使锋利;修整;
vi. 慢慢向前移动，侧身移动;
🗣️ 情景例句
After studying an hour, I finally got the hang of the lesson.
我学习了一个小时，终于理解了这一课的要点。
I believe the first test of truly great man is his humility.
一个真正伟大的人，对他的第一个考验就是看他是否谦逊。
Instead of becoming a doctor, however, he became a successful writer of detective stories.
然而，他后来没当上医生，却成了一位成功的侦探小说作家。