flagging

The runners tried to boost their flagging energy by drinking glucose water during the last mile of the race.

(Chinese) 跑者们在比赛的最后一英里通过喝葡萄糖水来增强衰退的体力。

The company's flagging sales led to a major restructuring of its marketing department.

(Chinese) 公司业绩的下滑导致其市场部门进行了重大重组。