| 1. | The students had all paired off by the end of term .
到学期末学生都已成双结对的了。 |
| 2. | The guests came in couples .
客人们成双成对地来了。 |
| 3. | Most galaxies occur in pairs or in small multiple groups .
大多数星系成双或几个成一小群。 |
| 4. | Birds often pair for life .
鸟常常成双配对。 |
| 5. | After dinner the boys and girls paired off and went to dance .
会餐后，男女青年们成双成对地去跳舞。 |
| 6. | As the couples closed upon him he expressed his congratulations .
当那些成双成对的人走近他时，他向他们表示了祝贺。 |
| 7. | "kids" and "pandas" swing toward the center, coming to a halt in a double line .
“小山羊”和“熊猫”队队员迅速走向球场中央，止步成双行站立。 |
| 8. | When the idea of a gens was developed, it would naturally have taken the form of gentes in pairs .
当氏族观念日益发展时，很自然地就会出现成双配对的的氏族。 |
| 9. | The amorists flutter here and there on the spring breezes, unknowing where they go, uncaring .
情人们成双地乘着春风四处飘翔，他们不知去向何方，也毫不将此放在心上。 |
| 10. | If the atmosphere is squashed prolate into a double tide, and if we could then let it go, it would go sloshing up and down .
如果大气被拉扁成双潮汐，那么让它这样下去，它就会继续上下涨落。 |
