单词：fish culture in stagnant water ponds
单词：fish culture in stagnant water ponds 相关文章
Agriculture Report - Grow It Yourself: Diving Into Aquaponics 农业报道 - 生态水培技术 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Aquaponics is the idea of producing vegetables and fi
2012年VOA慢速英语(二)月
It seemed like a good ideabecause rivers and ponds in Bangladesh were contaminated with bacteria, Bangladeshis switched to wells. But soon after, in the early 80s, researchers realized those wells were harming Bangladeshis with a new poisonarsenic. T
Scientific American(十一)月
As It Is - Bangladesh Works to Prevent Child Drowning Deaths 孟加拉国致力预防儿童溺水死亡 On a hot day, several 12-year-olds are learning to swim at a park in Dhaka, the capital of Bangladesh. It is a rare sight to see an inflatableswim
2014年VOA慢速英语(十)月
There is a place in that city where the road runs between two deep ponds. 那所城市有这样一个地方：中间是路，两边是池塘。 It is a narrow road, with the water coming right up to the edge on each side. 这是一条羊肠小道，两
美国小学英语教材4
In the east African savanna, pools of water form during the rainy season only to dry up a few months later. Being a fish in one of these temporary ponds is a challenge. To survive, they race to maturity, with the shortest generation time of any verte
Scientific American(九)月
AGRICULTURE Report – October 22, 2002: Aquaculture By Gary Garriott This is the VOA Special English Agriculture Report. Aquaculture is the production of food through the controlled growth and harves
农业与发展