n.揮手；起伏

adj.波浪狀的

動詞wave的現(xiàn)在分詞.

After waving her hands casualy,she left. 她隨意地?fù)]了揮手就走了。

People were craning out of the windows and waving. 人們把頭探出窗外揮手致意。

Bipolar disorder is a chronic and recurrent psychiatric disorder,which is characterized by waving mania or depression. 雙相障礙是以起伏性躁狂或抑郁為特征的慢性周期性精神疾病。