感觉天然蚕茧球已经充满了水分并变得柔软以后，就可以使用了。
Natural feeling of the ball cocoon has been full of water and become soft, can be used.
一些人说做瑜伽能通过让他们的脊柱变得柔软并拉伸背部肌肉以达到缓解背部的疼痛的目的。
Some claim that it eases back pain by keeping their spines supple and strengthening the muscles that support it.
一种放在或垫在地板上的铺设物下面的垫子，使变得柔软并增加耐久性。
A mat placed or attached beneath carpeting to provide softness and increase durability.
键触摸柔软，较低的启动力量，加之键的全行程距离，是击键变得舒适，并减小了击键时“降到最低点”的风险。
Soft key touch, low activation force and full key travel distance provides keying comfort and reduces risk from "bottoming out" when keying.
键触摸柔软，较低的启动力量，加之键的全行程距离，是击键变得舒适，并减小了击键时“降到最低点”的风险。
Soft key touch, low activation force and full key travel distance provides keying comfort and reduces risk from "bottoming out" when keying.
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