Positions
n. 定位；位置（position的復(fù)數(shù)）
??? 情景例句
if you can't make the payments.
如果你們不能還錢
You have a younger brother, don't you?
你有個弟弟，是嗎？
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你們離開實驗室前，務(wù)必要關(guān)上電源，關(guān)好窗戶。