The experts at the University of Illinois say pieces that weigh less than thirty grams may not produce as much.

VOA: special.2009.03.10

exhibits a sort of lofty detachment to the more or less petty things that weigh most of us down.

这类人展现了一种,对琐碎事物的崇高超脱,让我们大多数人无地自容。

耶鲁公开课 - 政治哲学导论课程节选

The satellite itself would weigh less than two kilograms.

VOA: special.2009.06.10

So they weigh less to transport.

VOA: special.2010.06.15