Sleep is a peaceful rest. Another is an active rest.
另一种是积极的休息，例如到户外去走一走。
The rest received a "dummy" placebo pill with no active ingredients.
剩下的一半志愿者则每天服用一颗“假的”没有有效成分的安慰剂。
They rest on their whole active surface and practically can not stand any pressure difference action.
他们依靠在他们的整个作用面上，并且实际不能承受任何压差作用。
They rest on their whole active surface and practically can not stand any pressure difference action.
他们依靠在他们的整个作用面上，并且实际不能承受任何压差作用。
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