not all that good 不算很好
not all that important 不那么重要
not all that difficult 不太难
not all that different 不太不同
not all that surprising 不太令人惊讶
1. The movie was not all that interesting.
这部电影并没有那么有趣。
2. The exam was not all that difficult.
这次考试并没有那么难。
3. I heard the restaurant was famous, but it was not all that special.
我听说那家餐厅很有名，但其实并没有那么特别。
A: How was the new game?
A：那个新游戏怎么样？
B: It was not all that exciting.
B：它并没有那么令人兴奋。
A: Was the project difficult?
A：这个项目困难吗？
B: No, it was not all that hard.
B：不，其实没有那么难。
1) 表示程度低于预期，相当于“不那么……”
2) 用于委婉表达某事不够好或不突出
3) 常见于日常口语和非正式交流中
1. 不太；并不那么（用于否定某种程度或评价）
e.g. The book is not all that useful.
这本书并没有那么有用。
2. 不特别；不值得特别关注
e.g. The place is not all that famous.
这个地方并没有那么出名。
phrase
1. Used to say that someone or something is not as good, important, or impressive as expected.
Synonym: not very, not particularly, not especially