falters的音标？

He never falters in his determination.他的决心从不动摇.The plan never falters; the design never changes. It is all ordered.大自然从不步履蹒跚,从不三心二意,一切都是有条不紊.Wettability is not stable and falters.润湿性并不稳定和衰退....

v.（嗓音）颤抖( falter的第三人称单数 )，支吾其词，蹒跚，摇晃...