1．summer vacation英[ˈsʌmə(r) veɪˈkeɪʃn]美[ˈsʌmər veɪˈkeɪʃn]，n.暑假。
2．[例句]During the past few years the government has staggered the summer vacation periods for students.在过去几年里，政府将学生放暑假的时间相互错开。
