"Basically,it's an underwater balloon. You've got two parts to it: You've got the balloon here - which is this long cylindrical object - and that's filled with a lighter-than-water substance, which is aviation gasoline."

VOA: standard.2010.06.21

This is a really good topic to do the class before an exam because it's a little bit of a lighter topic.

这对于考试之前的一节课来说,是一个非常好的课题,因为这是一个稍微轻松一点的课题。

麻省理工公开课 - 化学原理课程节选

he gave one of them a lighter.

然后，他送了他们每人一个打火机。

充满人情的地方 - SpeakingMax英语口语达人

The challenge for designers was to create a vehicle with the protection provided by an MRAP but about 25 per cent lighter.

VOA: standard.2009.11.02

At least I don't have those. But what I've done is to excerpt some of the texts earlier in the term-- and actually there's so that it's a little bit lighter after break, when we're doing those long novels.

至少我没有列出那些,但我已经做完的是,在放假前当然会有稍多的阅读量，假期过后我们再读那些长篇小说时就会轻松一点。

耶鲁公开课 - 1945年后的美国小说课程节选

"If you happened to be a Taino who lived up in the mountains and you weren't in the sun a lot and maybe your skin was a little lighter, then they threw you in the 'white' bucket."

VOA: standard.2010.04.05

The sky was just a little lighter blue than his suit, clear and even with only one cloud in it, a large, blinding white one with curls and a beard." Notice that image of the cloud, the blinding white cloud.

天空比他身上蓝色的西装颜色更亮，更清朗，甚至,空中只有一朵白云，是大而亮白的螺旋状和,胡须状，注意这多云的图像，一朵亮白的云。

耶鲁公开课 - 1945年后的美国小说课程节选