a piece of paper

基本解释

Fold a piece of paper round the flowers so that they'll be easier to carry.
用一张纸把花包起来，这样它们易于携带。
If you need to vent, talk with someone or write your feelings down on a piece of paper and then throw it away.
若你需要宣泄，就找人倾诉或是将你的感受写在一张纸条上，然后扔了它。
He looked through it, readjusted it, took out a piece of paper from his breast pocket, and readjusted it again.
他透过望远镜望着对它调整一番而后从上衣口袋拿出一张纸又重新调整一遍。

The researchers left a piece of paper on the handlebars of the bicycles while their owners were away.
And there's also an experimental participation requirement, and next week I'll hand out a piece of paper describing the requirement.
我还要求你们以被试的身份去参加实验,下个星期我会给你们,一份关于要求的介绍
耶鲁公开课 - 心理学导论课程节选
And I'm not expecting you to do that calculation here, because it involves the calculator, among maybe a piece of paper as well.
我并不期望你们去做这个计算,因为它需要一个计算器，也许还需要一张纸。
麻省理工公开课 - 化学原理课程节选

Big blue trash cans were being tossed around like a piece of paper in the wind.
NPR: Frightened Okla. Residents Opt To Flee Tornadoes