人类活动

neural activity───神经活动

normal activity───正常生产；正常活动

brain activity───大脑活动

solar activity───[天]太阳活动；[天]太阳活动性

human stupidity───人类的愚蠢

social activity───社会行动

business activity───商业活动，经济活动；[贸易]业务活动

criminal activity───犯罪活动

cultural activity───文化活动

It is clearly the effect of human activity.───人类活动的影响是很明显的。

Others claimed there was a division of scientific opinion on the issue, so the advertisement should not have attributed global warming all to human activity.───其他人则声称这是个存在意见分歧的科学问题，因此该广告不应当将全球变暖悉数归咎于人类活动。

Here there is no sign of human activity.───那里并没有人类活动的迹象。

Aviation is still quite a recent human activity.───航空仍然是人类一项相当新的事业.