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eternally + adjective
She is eternally optimistic.
她永远乐观。
永恒地；永远地
先理解核心含义，再看它在真实句子里的用法。
永恒地；永远地
for all time; without end
She is eternally optimistic.
她永远乐观。
永恒地；永远
For eternity; forever.
不断地,反复地
Unceasingly, recurringly.
The stars seem to shine eternally in the night sky.
星星似乎在夜空中永恒地闪烁。
She promised to love him eternally.
她承诺永远爱他。
This song reminds me that some feelings last eternally.
这首歌让我想起，有些感觉是永恒持久的。
She is eternally optimistic.
她永远乐观。
His sacrifice will be eternally honored.
他的牺牲将被永远纪念。
Not this
He loves her eternal.
Use this
He loves her eternally.
错误：将形容词“eternal”误用作副词。应使用副词形式“eternally”来修饰动词“loves”。
Not this
Eternally love is rare.
Use this
Eternal love is rare.
错误：将副词“eternally”误用作形容词。应使用形容词“eternal”来修饰名词“love”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
永远感激
I will be eternally grateful for your help.
我将永远感激你的帮助。
永远乐观
She remains eternally optimistic even after failures.
即使经历失败，她仍然永远乐观。
永远保持警惕
We must remain eternally vigilant against cyber threats.
我们必须永远保持警惕，防范网络威胁。
永远年轻
He has an eternally young heart.
他有一颗永远年轻的心。
永远忠诚
They swore to be eternally faithful to each other.
他们发誓对彼此永远忠诚。
永远感激的；永远感恩的
I am eternally grateful for your support during that difficult time.
我非常感激你在那段艰难时期对我的支持。
永远属于你的（书信结尾用语）
With love, I remain eternally yours, Amelia.
带着爱意，我永远是你的，阿梅莉亚。
永远警惕的；永远保持警觉的
Citizens are urged to remain eternally vigilant in protecting their rights.
公民们被敦促在保护自身权利时永远保持警惕。
我永远、无可救药地爱着你。
I am eternally grateful for your help.
我对你的帮助永远感激不尽。
Use eternally naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
词根 eternal（永恒）加 ly 变副词；想象一列永不停站的火车，eternally 向前，永远如此。
语域：neutral 常见场景：formal writing、fixed courteous expressions、philosophical or religious texts 该词意为“永恒地；永远地”，多用于书面或较为正式的表达，口语中更常说 forever；在常见搭配（如 eternally grateful）中也可自然使用，语气偏正式、庄重。
Rhymes with internally, externally, nocturnally, and maternally, all sharing the stressed /ˈtɜːr/ plus /nəli/ sound. Finally and carnally are spelling lookalikes (both end in -nally) but do not rhyme: finally is /ˈfaɪnəli/ and carnally is /ˈkɑːrnəli/.
Dictionary facts from ECDICT, WIKTIONARY.