This is the 5200th most frequent Chinese word.
一瞬间
"A fleeting moment; an instant."
Here, '一瞬间' is used to describe the very brief moment during which the emotional reaction occurs, emphasizing the suddenness.
书籍中一个片段让她在一瞬间落泪。
A passage in the book brought her to tears in an instant.
In this sentence, '一瞬间' indicates the abrupt occurrence of the event, stressing its quick and unexpected nature.
意外发生在一瞬间，毫无征兆。
The accident happened in an instant, without any warning.
'一瞬间' is used to depict the rapid and immediate change in the environment following the event.