grammarmedium
Not this
I admire her excellency as a leader.
Use this
I admire her excellence as a leader.
excellency 是尊称头衔，意为“阁下”，不是抽象名词“优秀”；表示“优秀；卓越”应使用 excellence。
阁下
excellencies — plural of excellency
先理解核心含义，再看它在真实句子里的用法。
阁下
a title used to address dignitaries such as ambassadors or governors, usually preceded by 'Your', 'His', or 'Her'
His Excellency will open the new trade center tomorrow at noon.
阁下将于明天中午为新贸易中心揭幕。
通常与 Your、His 或 Her 连用
对某些高级官员或显要人物的尊称
A form of address for certain high officials or dignitaries.
卓越；优秀的品质
Synonym of excellence; the quality of being excellent.
The assistant arranged a private dinner for Her Excellency and her delegation.
助理为阁下和她的代表团安排了一场私人晚宴。
Please inform Your Excellency that the ceremony will begin at dusk.
请通知阁下，仪式将于黄昏开始。
Not this
I admire her excellency as a leader.
Use this
I admire her excellence as a leader.
excellency 是尊称头衔，意为“阁下”，不是抽象名词“优秀”；表示“优秀；卓越”应使用 excellence。
Not this
Excellency, your car is ready.
Use this
Your Excellency, your car is ready.
直接称呼某位阁下时，称呼语应为 Your Excellency，不能只用 Excellency。
Not this
Your Excellency has arrived.
Use this
His Excellency has arrived.
当面称呼用 Your Excellency；在第三者转述中提到某位阁下时，应用 His Excellency（女性用 Her Excellency）。
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Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.