在团队讨论中，他总是表现得像个胆小鬼，从不敢提出反对意见。

In team discussions, he always acts like a ___milquetoast and never dares to voice disagreement.

这部电影的角色塑造太软弱了，缺乏个性。

The characters in this movie are too ___milquetoast, lacking any real personality.