1. The train will be ready to leave when all the carriages have been coupled. �����г��ᶼ���Ӻ�ʱ�г����ɿ�����
2. They are a model couple. ������һ�ԡ�ģ�������ޡ�
3. We were a happy couple. �����Ǻÿ��ֵ�һ�ԡ�
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n.
1. a small indefinite number
2. a pair of people who live together
3. a pair who associate with one another
4. two items of the same kind
5. (physics) something joined by two equal and opposite forces that act along parallel lines v.
1. bring two objects, ideas, or people together
2. link together
3. form a pair or pairs
4. make love