Knife-edges
n. 刀刃；锐利物；处于紧要关头；十分焦虑
🧩 词语组成解析
knife
[naɪf]
n. 刀;匕首;刃部;手术刀;
vt. 切割，刺;伤害;
vi. 劈开;划过;
n. 边界；边缘；优势（edge的复数）
🗣️ 情景例句
The work was turned over to the secretary.
这项工作移交给了秘书。
I was born on September 1st, 1976.
我出生在1976年9月1日。
It has been said that everyone lives by selling something.
据说每个人都靠出售某种东西来维持生活。