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Mount Sinai
Mount Sinai 是专有名词，首字母需大写。
Mount Sinai is believed to be the peak where Moses received the Ten Commandments.
西奈山被认为是摩西接受十诫的山峰。
西奈山
先理解核心含义，再看它在真实句子里的用法。
西奈山
Sinai
Mount Sinai is believed to be the peak where Moses received the Ten Commandments.
西奈山被认为是摩西接受十诫的山峰。
西奈半岛南部的一座山峰(海拔7500英尺)；被认为是摩西接受十诫的山峰
a mountain peak in the southern Sinai Peninsula (7,500 feet high); it is believed to be the peak on which Moses received the Ten Commandments
埃及东北部西奈半岛上的沙漠
a desert on the Sinai Peninsula in northeastern Egypt
埃及东北部的半岛；位于红海北端
a peninsula in northeastern Egypt; at north end of Red Sea
Sinai is famous as the mountain where Moses received the Ten Commandments.
西奈山因摩西在此接受十诫而闻名。
We got up early to climb Sinai and watch the sunrise from the summit.
我们早起去爬西奈山，在山顶看日出。
The desert around Sinai is rugged, but the view from the peak is worth the journey.
西奈山周围的沙漠崎岖不平，但从山顶看到的景色值得一游。
Mount Sinai 是专有名词，首字母需大写。
Mount Sinai is believed to be the peak where Moses received the Ten Commandments.
西奈山被认为是摩西接受十诫的山峰。
Sinai Peninsula 前通常需要用定冠词 the。
Mount Sinai is located in the Sinai Peninsula.
西奈山位于西奈半岛。
Not this
sinai is in Egypt.
Use this
Sinai is in Egypt.
Sinai 是专有名词，在英语中必须首字母大写；中文没有大写规则，因此学习者容易写成小写。把 s 改为 S，句子才是规范写法。
Not this
They climbed Sinai Mountain.
Use this
They climbed Mount Sinai.
英语中这座山的固定名称是 Mount Sinai，采用“Mount + 专名”的语序；受中文“西奈山”（修饰语在前）影响，学习者容易说成 Sinai Mountain。改为 Mount Sinai 才符合英语地名习惯。
Not this
Moses received the Ten Commandments in Mount Sinai.
Use this
Moses received the Ten Commandments on Mount Sinai.
在 Mount Sinai 上要用介词 on，表示在山的表面；in 表示“在……里面/内部”，用在这里不符合地点搭配。把 in 改成 on，语义才正确。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
西奈山
In the Bible, God spoke to Moses on Mount Sinai.
在《圣经》中，上帝在西奈山对摩西说话。
西奈之约
The Sinai covenant is central to the Old Testament.
西奈之约是《旧约》的核心。
西奈启示
Jews celebrate the Sinai revelation on Shavuot.
犹太人在五旬节庆祝西奈启示。
西奈山全山冒烟，因为耶和华在火中降于其上；烟气上腾，如烧窑一般，整座山大大震动。
Mount Sinai is a sacred mountain in the Sinai Peninsula, visited by pilgrims of many faiths.
西奈山是西奈半岛上的一座圣山，有许多宗教信徒前往朝圣。
Use Sinai naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
摩西在西奈山顶‘sigh’(叹气)，因已‘nigh’(临近)上帝——Sinai的读音正好是sigh+nigh。
语域：neutral 常见场景：宗教文本、历史叙述、地理介绍 作为专有名词，Sinai 本身没有明显的正式或非正式色彩；作为西奈山时，通常出现在宗教、历史或地理类文本中，日常口语里比较少见，多用于书面或介绍性语境。
西奈（山）为专有名词，通常首字母大写。
Dictionary facts from ECDICT.