descriptive · describing a soft, pleasant, and continuous breeze

晚饭后，走在凉风习习的小路上，感觉非常惬意。

descriptive · plentiful or appearing in great numbers or succession

当时冠盖习习，车马盈门。

verb · the appearance or sound of birds flapping their wings in flight

习习笼中鸟，举翮触四隅。