- 释义：
- num. 七十，七十个
- 例句：
-
This is an article that is retailed at seventy pence.
这是一件零售价格为70便士的物品.
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She worked up her typing speed to seventy words a minute.
她把打字速度提高到每分钟70个字.
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Mrs. Snow will go out a great deal, even at seventy - five .
斯诺夫人已经 75 岁了, 还经常参加社交活动.
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