1. Manna in cobweb lusters with lightness. 蛛网上的甘露光彩轻盈。
2. In the meantime, taller colour lightness still adjusts effectively indoor light. 同时，较高的色彩明度还能有效地调节室内光线。
3. If eternal return is the heaviest of burdens, then our lives can stand out against it in all their splendid lightness. 如果永劫回归是最沉重的负担，那么我们的生活就能以其全部辉煌的轻松，来与之抗衡。
英英解释
n.
1. a feeling of joy and pride
2. the property of being comparatively small in weight
3. the gracefulness of a person or animal that is quick and nimble
4. having a light color
5. the visual effect of illumination on objects or scenes as created in pictures
6. the trait of being lighthearted and frivolous
