Each spring, thousands of walruses return to the Walrus Islands in northern Bristol Bay to feed, rest, and sometimes die.
每年春天，成千上万只海象返回到布里斯托尔湾北部的海象群岛觅食、休憩、有时死亡。
2
Each spring thousands of walruses return to the walrus Islands in northern Bristol Bay to feed, rest, and sometimes die.
每年春天，成千上万的海象返回到布里斯托尔海湾北部的海象群岛，喂养、休憩、有时死亡。
3
Black carbon is already having an impact on the ice atop the Himalayas, the massive glaciers that feed the major rivers of Asia when they melt each spring.