在我们的太阳附近，星际物质的平均密度比最好的地球实验室真空还要低1000到10000倍。
The average density of interstellar material in the vicinity of our Sun is 1,000 to 10,000 times less than the best terrestrial laboratory vacuum.
时间就是金钱，而我却把自己宝贵的时间用来决定是买便宜的低脂黄油还是买质量最好但价格却高出两倍的新鲜有机黄油。
Time is money, and I'm spending my valuable time deciding between the cheap, low-fat kind and the best quality, fresh organic butter for three times the price.
总的说来，乌贼的能量需求比暖血的鲸低300到600倍，鲸是另一种南极海域的顶级食肉动物。
Overall, the squid's energy requirements are 300 to 600 times lower than those of warm-blooded whales, the other top predators in Antarctic waters.
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