ㄨㄟˋㄙㄨㄛㄅㄨˋㄑㄧㄢˊwèisuō‑bùqián

畏缩不前
  1. 由於畏懼害怕退縮不敢 初出茅廬不免困難畏縮不前」。

to shrink back in fear (idiom)​; too cowardly to advance