Look left and right before you cross the road.
左右看一看,然后再过马路。
One also has to make the assumption that hands were stenciled palm downward—a left hand stenciled palm upward might of course look as if it were a right hand.
我们不得不做出一种假设:双手是手掌朝下被印刷出来的,而手掌朝上印刷出来的左手看起来必定会像一只右手。
Look left and right to make sure it's safe before you go across the street.
过马路前要左右看看,确保安全。
If you look at increasing weight as you go from left to right on this axis, lean people, overweight people, and obese people, the risk goes way up for death from cardiovascular diseases.
从X轴左边到右边,随着体重不断上升,精瘦的,超重的,以及肥胖人群,心血管疾病的致死风险也随之增加
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