HOUSE OF THE DRAGON · シーズン 1
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all but assure it

几乎能确保 / 十拿九稳

`all but` 意思是「几乎,差一点就」,后面接一个动词,表示非常接近某种状态。所以 `all but assure it` 就是「几乎能确保成功」的意思,带有很强的把握性。

Now, I'm fairly certain I can win these games, Lady Alicent.
Having your favor would all but assure it.
Good luck, my Prince.
all but assure it — HOUSE OF THE DRAGON S01E01 · ReelWord