very light

Hydrogen is a very light gas that can help balloons fly high in the sky.

氢气是一种非常轻的气体，以帮助气球在天空中飞得高。

The basket is very light; I can easily pick it up.

轻，我以拿起来。

Aluminium looks heavy but actually it is very light.

铝看起来重,实际上却轻。

This suitcase looks heavy but actually it is very light.

这个皮箱看上去重, 实际上轻。

These plastic bowls are very light.

这些塑料碗轻。