| 21. | The dressmaker used a pin to fasten the pattern to the cloth. |
| 裁缝用一根别针将纸样别在布料上。
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| 22. | She wore her class pin . |
| 她佩戴着班徽。
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| 23. | John is smart as a new pin . |
| 约翰打扮得非常漂亮。
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| 24. | He was on the pin to see who should be chosen. |
| 他留心看谁当选。
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| 25. | If the collar won't stay in place, I shall have to pin it back. |
| 如果领子会移动，我得用别针把它别住。
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| 26. | It is difficult to pin down the exact meaning of this verb. |
| 很难准确说明这个动词的含义。
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| 27. | See if you can pin the chairman down to an exact date. |
| 看你是否能叫主席定一个确切的日期。
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| 28. | I seem to recognize the quotation, but I cannot pin it down to its author. |
| 这段引文我似乎见到过，但是无法确定作者是谁了。
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| 29. | They tried to pin him down to a definite promise. |
| 全心全意试图使他作出明确的保证。
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| 30. | The teachers usually pin up the best work on the board. |
| 老师常把最好的作业钉在黑板上。
|