Pass out 表示晕倒、失去意识，常用于描述因高温、饥饿、疼痛或惊吓等情况出现的短暂昏厥。另一个意思是向一群人分发物品，在美式英语中较常见：pass out the worksheets。
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写一句英语，查看错误和更自然的表达建议。
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pass out (from + heat/hunger/pain); nearly/almost pass out; pass out + papers/leaflets (= hand out)
- It was so hot at the concert that two people near the stage passed out.
- I nearly passed out when the nurse showed me the size of the needle.
- The teacher passed out the test papers and told us we had forty minutes.
修改原因
修改前It was so hot on the underground that a woman passed away, but a doctor helped her and she was soon fine.
修改后It was so hot on the underground that a woman passed out, but a doctor helped her and she was soon fine.
Pass away 是表示“去世”的委婉说法。两个短语只差后一个词，却会完全改变意思：原句成了那位女士去世后又恢复了。要描述她在闷热中晕倒，应使用 passed out。
医学记录或正式信件里，lose consciousness 更合适：The patient lost consciousness for about a minute。Faint 也表示晕厥，常用于高温、虚弱或害怕等情境。Pass out 的范围更广，也可描述头部受击后失去意识。
动手练习
He hadn't eaten all day, and when he stood up too quickly, he ___ for a few seconds.
查看答案
passed out — 题目描述的是一天没吃东西、起身过快后短暂失去意识，因此选 passed out。Passed away 表示去世，不符合随后恢复的短暂昏厥情境。
描述一次有人因高温、饥饿或疼痛而不适的经历。说明发生地点，以及后来怎样恢复意识。
On a crowded bus last July, an elderly man passed out from the heat, and we gave him water until he came round.
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