Eventually a negative stepped leader travels downward and reaches the ground, creating a return stroke.

最终一个下行传播的负极梯形先导接触到地面，制造了一次回击。

youdao

Objective: To study etiological relation of negative emotion about factors and cerebral stroke.

目的：探讨负性情绪与脑卒中的病因相关因素。

youdao

Results Depression complicated by frontal stroke is high risk. The correlation of activities of daily living and depression is negative.

结果病灶在额叶卒中后抑郁症发生最高，日常生活依赖程度评分与抑郁呈显著负相关。

youdao

With one stroke the Conservatives had freed themselves of much of the negative baggage of the Thatcher years, and could face the upcoming election with reasonable expectations of success.

BBC: NEWS | VOTE2001 | THE ELECTION BATTLES 1945-1997

So when the family of an elderly woman insisted that she be admitted to the hospital after stroke-like symptoms, he agreed to do so, even though her test results were negative and he wanted to send her home.

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