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1·This date shifting is a result of the discrepancy between a human calendar year—which is usually counted as 365 days—and an astronomical year, which is about 365.24 days.

这个日期的变化是人类的历年（通常以365天为计）与天文年（以365.24天）之间的差异而产生的。

2·It turns out, however, that there are 365.24219 days in an astronomical tropical year-defined as the time it takes the sun, as seen from Earth, to make one complete circuit of the sky.

尽管这样，实际上在天文上一回归年中有365.24219天——一回归年指的是由地球上观察，太阳在天空运行一整个圆周所用的时长。

3·So Emmerich found a way to kill the Earth using a faux astronomical event (there is no planetary alignment in the year 2012) and by inventing a solar interaction that has never been observed.

导演艾默里克用一个虚假的天文事件毁灭了地球(2012年是不会出现行星对其的现象的)，他还无中生有了从未观测到的太阳系互动行为。

4·Last year Chikako Yasui, now at the National Astronomical Observatory of Japan, and her colleagues reported on 111 newborn stars in a Milky Way exurb, over twice as far out as the sun.

去年，近子安井(现在日本国家天文台工作)及其同事报告说，银河系边远地区(比太阳远两倍以上)有111颗新生恒星。

5·The wartime deficits were astronomical -- nearly 30 percent of GDP in the last year of the war.

战时的赤字是天文数字——几乎是过去一年GDP的百分之三十。

6·The price of an average two-storey house in Saskatoon jumped 57% last year, while wage demands are astronomical too.

在萨斯卡通(Saskatoon)，一个平均二层楼房屋的价格在去年飞涨了57%，而工资要求也是一个天文数字。

7·Americans go through 110 billion plastic or plastic-covered cups each year, using and discarding what the Food Packaging Institute describes as astronomical numbers of disposable containers.

美国人每年要用1100亿塑料制品或塑料盖杯，用完丢弃的一次性容器数量被食品包装研究所（FoodPackaging Institute）形容为“天文数字”。

8·According to the latest astronomical news, this year the Mid-Autumn festival, the most round the moon to the round moon brings you a most romantic and sweet night!

据最新天文消息，今年中秋佳节的月亮最圆，愿最圆的月儿带给你一个最浪漫、最温馨的夜晚！

9·Now a 15-year-old boy has studied astronomical charts devised by these ancient Mexican people, as well as satellite photos, to pinpoint the location of a forgotten Mayan city.

现在，一个15岁的男孩通过观察由古墨西哥人绘制出来的星图，结合卫星图像，发现了一座失落的玛雅古城。

10·Light - year is an astronomical unit.

光年是一个天文单位。