Scientists develop the world 's thinnest balloon .

科学家开发世上最薄的气球。

My little brother is the thinnest in his class .

我弟弟在他的班级是最瘦的.

Give me the thinnest thread , please .

请给我最细的线。

Did you think it 's the thinnest condom on earth I have on ?

你觉得我带的是世界上最薄的套子么?

Earlier this year , it unveiled the world 's thinnest and fastest smartphones .

今年早些时候，它推出了世界上最薄的和最快的智能手机。