Extracting information about the large-scale composition of a planet from a sample weighing a millionth of a gram was a fascinating example of scientific endeavour.

从重量为百万分之一克的样品中提取有关行星宏观组成的信息是一个极为有趣的科学尝试实例。

《柯林斯英汉双解大词典》

Moreover, the high price of petrol, large numbers of unemployed, food inflation and uncertainty over taxes are weighing heavily on low-income Americans.

更糟糕的是高油价，庞大的事业人口，食品价格通货膨胀以及不确定的税金调整加重了美国低收入家庭的负担。

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Some people advocate that large buses-those weighing more than 10, 000 pounds-have seat belts to keep children safe.

有人主张大型巴士-指重量超过10000磅的巴士应该配备安全带，以保障儿童的安全。

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To our surprise and disappointment however, at the end of the snare was a large female wolf, weighing about 45kg.

BBC: Snow Leopard Diary

The bottom line: This year Congress is running a large "bonus depreciation" special on cars weighing more than 6, 000 pounds, such as the Cadillac Escalade and Nissan Armada.

WSJ: Tax Report: The New Tax Breaks for Business Autos

The W family will be desktop replacement devices weighing in at about 7 pounds with displays as large as 15 inches.

CNN: Emachines builds line with multimedia, business PCs