"under obligation," mid-14c., originally past participle of behold (and preserving the original past participle of hold), but a sense directly related to this usage is not recorded among the many and varied meanings attested for behold.
权威例句
1. He was made beholden to the Mafia.
他受过黑手党的恩惠。
2. She didn't like to be beholden to anyone.
她不愿欠任何人的情。
3. I am greatly beholden to you for your kindness.
承蒙厚爱,十分感激.
4. We feel really beholden to them for what they've done.