1. The gulls flew off, wings flapping. 海鸥扑打着双翅飞走了。
2. During the winter months, great flocks of gulls gather at landfills and sewage outfalls. 冬季时大群大群的海鸥会聚集在垃圾场和排污口。
3. While local gulls will dive voraciously for such handouts, the tern flies on. 当地的海鸥会贪婪地扑向这些施舍的食物，而燕鸥会继续飞行。
4. The leatherback is certainly not the only animal with such an arrangement; gulls have a countercurrent exchange in their legs. 当然并不只是棱皮龟有这种结构，海鸥的腿部也有一个逆流交换系统。
5. Gulls are nesting on a small island toward the eastern shore. 海鸥正在靠近东海岸的一个小岛上筑巢。
