At first, the ancient people looked up at the sun and could tell it was the middle of the day, when the sun was directly overhead in the sky.
起初，古人抬头看太阳，看到太阳正挂在头顶上的时候就知道是正午。
The hot sun is shining right overhead.
烈日当头照。
As the sun passed overhead then sank into the west it burned a bright path across the middle of the sky in this long-exposure image.
在这张长曝光片中，太阳划过头顶，渐渐西下，划出明亮的光带。
These guys hang their bushy bottle brushes overhead like some kind of parasol to keep the sun off.
这些家伙把它们毛茸茸的洗瓶刷放在头上，就像某种遮阳伞。
The autumnal equinox and vernal-or spring-equinox are also the only days of the year when a person standing on the Equator can see the sun passing directly overhead.
春秋分日还是一年中唯一的两天，人站在赤道，可以看到太阳从头顶正上方经过。
The sun sinks, a pair of toucans passes noisily overhead, and the diurnal monkeys begin wandering off, heading back to their nests for the night.
夕阳西沉，两只喧闹的犀鸟飞过了我的头顶，喜爱在白天活动的卷尾猴们开始三三两两的离去，它们朝着巢所在的方向进发，好在黑夜来临之前赶回去过夜。
This first photograph was captured during an eight hour exposure, taking so much time that the sun passed overhead and thus illuminating both sides of the courtyard.
第一张照片是曝光8个小时后得到的，由于曝光时间太长，太阳从这头照到那头，使得照片里的院子两边都同样明亮。
For example, rows of vegetables should be planted in an east-west direction. That way, as the sun passes overhead, all the plants will receive an equal amount of light.
例如，成排的蔬菜应朝东西方向种植。
If the Earth were flipped sideways - like Uranus - the sun would be pretty much overhead at the North Pole on the June solstice.
如果地球的位置向旁边倾斜一点——像天王星一样，那么在夏至这天太阳会以更美的姿态出现在北极的天空中。
Dark clouds overhead had blotted out the sun.
头顶上的乌云遮住了太阳。
One of the two dates each year when at noon the Sun is directly overhead at the equator and day and night are of equal length.
一年中出现两次的日子，这一天中午太阳直射赤道，并且白天和晚上有相同时间长度。
Suddenly, dark clouds piled up overhead and rain began to fall, but strange to relate, several hundred yards ahead of me the sun shone brilliantly.
突然，乌云密布，大雨滂沱，然而令人惊奇的是，在前方阳光灿烂。
Planet X arrived in your inner solar system in 2003, and is riding past the Sun and now outbound, though its passage, the point when it flies overhead past Earth, is still in the future.
行星于2003来到你们的内太阳系，正路过太阳向外运行，它飞临地球上方的时刻还没有到来。
I yearn for the soaring, even if is scorching sun overhead.
我向往飞翔，即便是烈日当空。
High overhead, the pale disc of the winter sun paints the mist with brightness.
冬季惨白的日轮高高在上，把雾照得通亮。
As the sun passed overhead, he marked even divisions on the circle as the shadow of the stick crossed it.
当太阳在天上走过时，棍子的影子与圆圈相交，他便在圆圈上划出许多分割圆圈的记号。
If we look at the sky on a perfectly fine summer's day we shall find that the blue colour is the most pure and intense overhead, and when looking high up in a direction opposite to the sun.
晴空万里的夏日，如果我们观察一下天空，且背向太阳，极目仰望，就会发现头顶上空的蓝色最纯净，最浓郁。
Using this figure, the area requirement for 1mw would be 1000m2, with 100% efficiency and sun overhead.
根据这个数据，当效率为100%，太阳在正上方时，1MW电力就需要1000m2的面积。
The sky was bright and cloudless overhead, and the tops of the trees shone rosily in the sun.
头上的大空晴朗无云，林梢在晨光下泛着一抹玫瑰红。
The sun was nearly overhead of us.
太阳快要到我们头顶上了。
If we look at the sky on a perfectly fine summer's day we shall find that theblue colour is the most pure and intense overhead, and when looking high up in adirection opposite to the sun.
晴空万里的夏日，如果我们观察一下天空，且背向太阳，极目仰望，就会发现头顶上空的蓝色最纯净，最浓郁。
If your schedule is flexible, go outdoors in early morning or late afternoon when the sun is lower in the sky. UV radiation peaks at midday, when the sun is directly overhead.
如果你的日程安排灵活，可以尽量选择早晨或者傍晚，尽量避免中午太阳辐射最高峰时刻出行。
If your schedule is flexible, go outdoors in early morning or late afternoon when the sun is lower in the sky. UV radiation peaks at midday, when the sun is directly overhead.
如果你的日程安排灵活，可以尽量选择早晨或者傍晚，尽量避免中午太阳辐射最高峰时刻出行。
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