单词：intermittent chlorination
单词：intermittent chlorination 相关文章
厄尔尼诺使热带鱼群前往加州 Thanks to El Ni?o, California's coastal waters have become more hospitable to fish from the tropics. Hammerhead sharks are among them. 由于厄尔尼诺现象，加州海岸的水域环境对来自热带的鱼来
VOA标准英语2016年(一月)
In the 1970s, Carl Safina fished off the U.S. Atlantic coast for bluefin tuna, a majestic warm-blooded predator that travels at highway speeds and can weigh as much as 650 kilograms. I've seen acres and acres of bluefin tuna at the surface, exploding
VOA标准英语2010年(三月)
By Douglas Bakshian General Santos City 06 September 2007 Worldwide tuna catches are falling as demand strains the supply. Tuna stocks in the Atlantic and Mediterranean have dropped, in recent years, prompting a cut in catch quotas. Supplies also app
2007年VOA标准英语（九月）
The Flea, the Grasshopper, and the Skipjack once wanted to see which of them could jump highest; and they invited the whole world, and whoever else would come, to see the grand sight. And there the three famous jumpers were met together in the room。
英语美文
The Flea, the Grasshopper, and the Skipjack once wanted to see which of them could jump highest; and they invited the whole world, and whoever else would come, to see the grand sight. And there the three famous jumpers were met together in the room。
实用英语