misstep
noun [ C ] uk/mɪsˈstep/ us/mɪsˈstep/
被绊了一下，失足
an act of placing your foot somewhere in an awkward way
A misstep can mean a nasty and possibly fatal fall. 一步踩虚就可能导致严重的、可能是致命的跌倒。
US错误，失误
a mistake
His opponents are watching very carefully for him to make a misstep. 他的对手都在非常小心地观察着他，希望他什么时候走错一步。