Definition
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per
The word 'per' indicates a ratio or distribution of something, often used to express a specific quantity or frequency in relation to another quantity.
单词 'per' 表示某种事物的比例或分配,通常用于表达与另一数量相关的特定数量或频率。
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The cost is $10 per person.
费用是每人10美元。
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You should drink eight glasses of water per day.
你每天应该喝八杯水。
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The speed limit is 60 miles per hour.
速度限制是每小时60英里。