falter

1.[i]衰弱；衰退；衰落to become weaker or less effective

2.[i][t](+ speech)（嗓音）颤抖；结巴地说；支吾其词to speak in a way that shows that you are not confident

3.[i]蹒跚；摇晃；犹豫；畏缩to walk or behave in a way that shows that you are not confident

1.逡巡,踌躇,迟疑;畏缩;(记忆力等)不确定,不稳定

2.蹒跚,踉跄,摇晃

3.颤抖,支吾,结巴

4.结结巴巴地说 (out)

1.支吾,结巴

2.踌躇,逡巡;不稳

3.摇晃

1.to stop being effective or making progress

2.to stop doing something because you have lost your confidence or determination

3.to stop speaking, or to speak with pauses between the words, because you are nervous or upset; if someone’s steps falter, they stop walking; if someone’s look or smile falters, they stop looking or smiling