释义
n. 旗标,旗子,信号旗 [计算机] 标志 v.枯萎,减退
例句
1. After walking for four hours we were beginning to flag. 步行了四个小时以后，我们开始累了。 2. That plant with purple flowers is flag. 那种开紫花的植物是菖蒲。