vi. 发生;碰巧;出现;偶然遇到;
💡 hap(luck)+pen(动词后缀)→发生;偶然发生;碰巧
"It's frightening to think it could happen again."
想到此事可能再次发生就使人不寒而栗。
近义:arise, issue, occur, pass, supervene, transpire
v. 知道;了解;认识;确信;
n. 知情;
💡 知道know的人爱说自己不no知道
"Do you know your ABC?"
你认识所有的字母吗?
近义:learn, understand, get, cognize, comprehend, meet