Carry this bag—it's the lightest.

你拿这个包—它最轻。

It's the lightest of the structural metals.

是最轻的结构金属。

It is the largest and lightest airplane ever built.

它被认为是有史以来所制造的最大且最轻的飞机。

Neutrinos are the lightest elementary particles we know of.

他说：“中微子是我们所知的基本粒子当中最轻的一个。

It was the lightest touch, but it thrilled him like a caress.

虽然只是极轻的一碰，但却如爱抚一般令他震颤。