HOUSE OF THE DRAGON · シーズン 1
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fealty

/ˈfiːəlti/C2

效忠 / 忠诚 (n.)

封建领主关系中的「效忠誓言」。常用搭配为 `pledge fealty to someone`(向某人宣誓效忠)。

and his named heir, the Princess Rhaenyra.
I pledge fealty to them
and shall defend them against all enemies
fealty — HOUSE OF THE DRAGON S01E01 · ReelWord