flag

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。