Fisherman Ray Turner hand-built the V-shaped stone overflow dam, in the East Branch of the Delaware River in New York.

渔民雷·特纳在纽约德拉瓦河的东支流手工建造了这个 V 字形石头溢流堰，或称鱼梁。

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Fisherman Ray Turner hand-built the V-shaped stone overflow dam, or weir, in the East Branch of the Delaware River in New York; its walls funnel eels into a wooden collecting rack.

渔民雷·特纳在纽约德拉瓦河东支流手工建造了这个V字形石头溢流堰，或称鱼梁。从它的墙壁漏过的鳗鱼进入木制的收集架内。

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Holding a "7" upright in your hand, you're less likely to view it sideways as a "v," she said.

把一个“7”垂直的拿到手中，你将不太可能把它认成“V”，她说道。

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As long as we understand that, we can do this cancellation and this says on the left-hand side the change in the quantity v square over 2 is a times the change in the quantity x.

只要我们明白这一点,我们就可以这样做简化,在等号左边,v^/2的变化量,为a乘以x的变化量

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