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- B. The primary producers can sometimes be indigestible. 初级生产者有时不能被消化.
- Autotrophic organisms (autotrophs) are important ecologically as primary producers, their activities ultimately supplying the carbon requirements of all heterotrophic organisms. 自养生物体在生态学上是重要的初级生产者，它们的活动最终为所有的异氧生物体提供能量。
- As the drought has worsened, the two primary producers have been feuding over who is to blame for the environmental mess. 正当沙漠化更趋严重之际，这两项主要的生产业者相互争吵是谁才是造成环境恶化的元凶。
- "Georges Duboeuf is one of the primary producers of Beaujolais Nouveau - 1/5th of his yearly production is for this wine. 乔治杜博夫是薄弱莱新酒的第一大生产商，每年新酒占其总产量的五分之一。
- Hydrothermal communities in deep seafloor live around Black Smoker sites.The primary producers of hydrothermal ecosystems are thermophiles and archaea. 现代海底黑烟囱周围生活着密集的生物群落，它们一般以黑烟囱喷口为中心向四周呈带状分布。
- The region, a 900-mile (1,450-kilometer) arc of 76 sparsely populated atolls and two islands, is one of the world's primary producers of cultured black pearls. 这片900英里的弧形区域由稀疏分布的76个环礁和2个岛屿组成,它也是世界上主要黑珍珠产地之一。
- Benthic algae served as the primary producer and the major food source for the stock. 辅以饲料，成为经济且自然的模式，在应 用上有其经济价值。
- Your excellent primary produce - beef and lamb,wheat and rice,sugar and fruit - is found in shops and supermarkets all over the region. 澳洲主要的农产品有牛肉、羊肉、小麦、米、糖和水果等，种类繁多，品质优良，在区内各地的店铺和超级市场随处可见。
- Your excellent primary produce - beef and lamb, wheat and rice, sugar and fruit - is found in shops and supermarkets all over the region. 澳洲主要的农产品有牛肉、羊肉、小麦、米、糖和水果等，种类繁多，品质优良，在区内各地的店铺和超级市场随处可见。
- This peper described primary producer, capacity and market situation and future trend of nitrile rubber at home and abroad. 本文介绍了国内外丁腈橡胶的主要生产厂家及生产能力,并阐述了国内外丁腈橡胶近年来的市场情况以及对未来的预测。
- The pattern is that of an economic upturn beginning to press on primary producing capacity, and in the UK on the labour market too. 当前的总体局势是，新一轮经济复苏正对初级产品的产能形成压力，在英国还对劳动力市场形成压力。
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- If the early primaries produce no clear front-runner, Mr Giuliani's national celebrity could see him through. 如果早期的初步选举不能产生一个明显的领跑者，朱利安尼先生在国内的名气会帮助他成功。
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
