Note: it may be impossible to measure the "true" standard deviation.

注意：不可能测量出“真实的”标准偏差。

youdao

This kind of deviation is not allowed and if someone dared to say such a thing then the simple answer would be that he is not a true follower because a true follower would not say such a thing.

这样的反面说法是不被允许的，而且如果某人胆敢说了这样的话那么就得到了很简单的结论-这个人不是真正的追随者，因为真正的追随者不会说这样的话。

youdao

He now bore off to the right to counteract the possible deviation from his true course.

为了修正对正确路线的偏离，现在，他要朝右开始他那一摇一晃的行程了。

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His wit and wiles have made him one of the sharpest thorns in Mr Blair's hide, a popular denouncer of New Labour's deviation from true Labour's path.

ECONOMIST: Is Tony Blair a Dalek?

We sought to account for the variations of baseball's different eras with the tried and true tool of standard deviation, which allowed us to look past raw win totals to measure the degree to which a team stood above the pack in a given season.

FORBES: Magazine Article