n. 旗;旗帜;信号旗;菖蒲;
vt. 标示;
vi. 疲乏,变弱,热情衰减;
例句:
The flag flaps in the wind.
旗在风中飘动.
The ship was flying the British flag.
那船悬挂着英国旗.
A red flag slowly goes up the pole.
一面红旗徐徐升起.