二十的用法和樣例：
例句
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她是二十歲失去童貞的。
She lost her virginity when she was twenty.
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經(jīng)理收到了二十份求職申請書(shū)。
The manager received twenty applications for the post.
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他們帶著(zhù)全副裝備行軍二十英里。
They marched twenty miles in full kit.
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1971年前，二十先令等于一英鎊。
Twenty shillings were equal to one pound before 1971.
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我已經(jīng)校對完二十頁(yè)了。
I have proofread twenty pages.
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當他二十歲的時(shí)候，他長(cháng)了胡子。
When he was twenty years old, he began to have a moustache.
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她是一位年僅二十歲的教師。
She is a teacher aged only twenty.
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在她二十歲的時(shí)候，她成為了肯特公爵夫人。
She became the Duchess of Kent when she was twenty.
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