vt.

1. 使變柔軟
   I tried all kinds of ways to soften his heart, but all my efforts were in vain.

   我嘗試各種方式去軟化他的心，但我的努力都失敗了。

2. 使變和藹

vi.

1. 變柔和
2. 變弱

v.

1. make or become soft or softer.
2. (often soften someone/thing up) undermine the resistance of.