這句話為何不用suffer from呢？

Question

They suffered the ultimate humiliation of defeat by their oldest enemies.這句話為何只用suffer而不用suffer from呢？

Answer 1

suffer有vi也有vt的用法vt-- Our troopssuffered heavy losses.[遭逢，遇到倒楣痛苦]vi--Mary often suffers from severe headaches..[經常，持續遭逢，遇到，承受倒楣痛苦，深受其苦]

Answer 2

suffer----vi&vt.
1. feel or have pain, loss 受苦, 受害, 受損失, 患病等
***suffer 作此意思解時, 通常當 vi. 使用, 也就是其後接 from, 再接受詞
He suffered from poverty all his life.
他一生受貧窮之苦。
My father suffers from high blood pressure.
我父親有高血壓。
They suffered a great deal in those days.
那時他們吃了不少苦。

2. experience, undergo (sth unpleasant) 經歷、遭受(不愉快之事)
suffer defeat(失敗)/adversity(不幸)
***suffer 作此意思解時, 通常當 vt. 使用, 其後直接接受詞
He suffered many humiliations before he became a football star.
他在成為足球名將前受過許多屈辱。