0 a piece of cloth, usually rectangular and attached to a pole at one edge, that has a pattern that shows it represents a country or a group, or has a particular meaning -- 旗,旗帜
1 a flagstone -- (同 flagstone)
2 a flower that is a type of large iris -- 菖蒲(一种大型鸢尾花)
3 to put a mark on something so it can be found easily among other similar things -- 给…做标记
4 to become tired, weaker, or less effective -- 变得疲倦;兴趣衰减
I was starting to flag after the ninth mile. 走了9英里后,我开始感到疲倦了。
The conversation was flagging. 谈话越来越乏味了。