1. Flotation collars are used to buoy space capsules that land in the sea. Ư��������ʹ�����ں���ĺ���ո��ں��档
2. You can take pilot a No. 5 Fairway Buoy. �㴬����5�ź�����Ͳ������Ա��
3. A short-wave expendable communications buoy can offer a new way for the security of the submarine. �����Ͷ̲�ͨ�Ÿ�����ΪDZͧ����ͨ���ṩһ���µ��ֶΡ�
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n.
1. bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater ha
2. float on the surface of water
3. keep afloat
4. mark with a buoy
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Buoy ����;
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life buoy ����Ȧ;
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buoy up ����;
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