| 41. | A new custom has sprung up. |
| 一种新的风俗出现了。
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| 42. | The custom has taken root among them. |
| 这一风俗已在他们中扎下根来。
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| 43. | It is the Persian custom that all shall rise when a person of special distinction enters a room. |
| 当一位知名人士进屋时，所有的人都得起立。这是波斯人的习俗。
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| 44. | This custom dates from the seventeenth century. |
| 这风俗始于17世纪。
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| 45. | The custom has descended to our day. |
| 这种习俗流传到今。
|
| 46. | There are occasions justifying departure from custom . |
| 有时违背惯例是有道理的。
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| 47. | A departure was made from old custom . |
| 背弃旧习俗。
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| 48. | The custom has died out. |
| 这种风俗已经消失。
|
| 49. | They secretly smuggle goods into the country to avoid paying custom duty on them. |
| 他们偷偷将货物带进国内以逃避关税。
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| 50. | The custom has its spring in another country. |
| 这风俗起源于外国。
|