bump

他额头上的肿块开始消退了。

The ___bump on his forehead is starting to go down.

在这条路上要小心；前面有个大凸起。

Be careful on this road; there's a big ___bump ahead.

用冰块敷一下，好让那个肿包消肿。

Apply some ice to reduce the swelling of that ___bump.