not all

基本解释

Many, but not all.
许多，但是不是全部。
Not all programmers agree with me on this.
不是所有程序员都认同我这种观点。
But not all people with depression have these genes, and not all people with these genes have depression.
但是并非所有的抑郁症的人都有这些基因，也不是所有有这些基因的人患抑郁症。

The researchers say many, if not all,people likely have these antibodies but do not always produce or use them efficiently.
Now, the concept of ritual impurity was a central and integral feature of most, if not all, ancient religions.
现在，仪式上的不洁已经是大部分宗教,主要的，整体而言的特点。
耶鲁公开课 - 旧约导论课程节选
Not all of the novels aspire to or have as their purpose that kind of difficulty that sometimes English majors really want.
不是所有的小说都希望或者拥有,英语主修生想到的那种难度。
耶鲁公开课 - 1945年后的美国小说课程节选

Current inequality is a little higher than in peer countries but not all that much.
FORBES: The Economic Legacy Of Margaret Thatcher