一直没有改变
Has not changed
以上为机器翻译结果,长、整句建议使用 人工翻译 。
它们一直没有改变。
They have not changed.
youdao
这套体系在本质上一直没有改变。
It was a system which has remained basically unchanged.
把一片晶体挑出之后拍摄,这种方法一直没有改变。
The method of singling out a crystal to photograph hasn't changed in all that time.
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