falter

v. 支吾地说,迟疑,蹒跚地走
My mother's taste never falters.我妈是个相当有品味的人.

The sick man faltered a few steps and then fell.

这个病人摇摇晃晃地走了几步，然后就跌倒了。

The business faltered and then failed.

商行生意衰退，最后倒闭了。