Editorial Note: This article is written with editorial review and topic relevance in mind.
In summer和in the summer的区别是泛指和特指的区别。 in summer就是一般的在夏天里，没有特别说明是今年的夏天还是过去的夏天，是泛指。例如： we like swimming in summer.夏天我.
Summer Bulletin Board Ideas For Infants Alers Gary
