Periods
n. 周期（period的復數）
??? 情景例句
Sure. Would you please sign your name on the back, sir, with your passport number?
每問題。先生，請您在支票背后簽上名字和護照號碼。
Here are the two originals of the contract we prepared.
這是我們準備好的兩份合同正本。
Did you leave it in water before you washed it?
在洗它之前您是不是把它泡在水里了？