And it's not unusual for temperatures and precipitation levels to be higher or lower than normal. After all, that's how we end up with the artificial line called normal.

发生暴风天气是正常现象，并且气温和降水超出正常范围也不足为奇，毕竟，人为划定“正常范围”终会造成这样的结果。

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This is the popular line of reasoning for many diet soda drinkers. Unfortunately, current research indicates a possible link between artificial sweetener consumption and weight gain.

这是很多喝无糖饮料者的理由，不幸的是，目前有研究表明，体重增加和人造甜味剂产品之间很有可能存在必然的联系。

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This time, the artificial lateral-line system could work out the general direction of the source and identify the pattern of the vortices.

这次人工侧线系统能够得出漩涡源头的大致方向，也能识别出漩涡的图形。

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He implores the prime minister to ditch this artificial dividing line and be candid with voters about the need for fiscal retrenchment whoever forms the next administration.

ECONOMIST: Gordon Brown's latest relaunch

Even teenagers, with their boundless enthusiasm for looking ridiculous, have to draw the line somewhere, and the artificial fabrics and science-fiction design of glam rock's outfits, which make the costumes in the closing credits of "Mamma Mia!"

WSJ: Keeping It Glam | 'Glam! 21st Century Factory' at Tate Liverpool

That dash of artificial intelligence was enough to push Quicken Family Lawyer across the line into the illegal practice of law, Sanders ruled.

FORBES: Arrest that software!