Another quality of line that's more difficult to achieve is variation in the softness and hardness.

线的另一性质更加难以企及，那便是软硬的变化。

youdao

Find at least one thing in your life to appreciate: the softness of your cat's fur, the winter sky, the spontaneous hug from a friend.

在你的生活中，至少找出一样值得赞赏的东西：你宠物猫那柔软的毛，冬日的天空，来自朋友的一个由衷的拥抱。

youdao

And the moon, water, flowers, cats and snakes are connected with women. They symbolize the softness, beauty and wittiness of women.

女性还常被人与月亮、水、花儿、猫、蛇等物象联系在一起，象征温柔、美丽、智慧等寓意。

youdao

There was a sweetness and softness in the woman's expression that I had never seen before.

VOA: special.2009.07.04

The softness in demand for capital equipment means that for most types, machinery is readily available.

FORBES: Economic Forecast Update, 2013-2014: Light-to-moderate Growth

He's very picky about the softness of the sheets and imports toilet paper from Thailand.

FORBES: Magazine Article

Yes, the softness of the Euro has given German exports an excellent cost advantage.

FORBES: Oh Great...A European Ruling On Competitiveness