period of time的音标：period of time的英式发音音标为：['piəriəd ɔv taim]period of time的美式发音音标为：['pɪriəd ʌv taɪm]...

n.时段，一段时间...

The money was lent for an undefined period of time.这笔钱无限期借出。The inscription of the monument has worn away over a long period of time.年深月久,碑文已经磨灭了.For a long period of time Latin was the literary language of Italy.很长一段时期,...