flagBECOME TIRED flAg v [I] -gg- to become tired or less interested 变得疲乏，变得枯燥无味;衰退，低落 flagging energy / enthusiasm 衰退的精力/低落的热情 Some people's strength had flagged by the third week of walking. 步行到第三个星期，一些人都已经疲乏无力了。 The conversation was flagging. 谈话越来越乏味了。