suddenly的词根为sud
例句
1、
They suddenly became aware of people looking at them.
他们突然意识到有些人在瞧着他们。
2、
Suddenly it clicked ─ we'd been talking about different people.
我们突然领悟到原来我们谈论的不是同一个人。
3、
It suddenly struck me how we could improve the situation.
我一下子明白我们如何能改善局面了。
