- 重点词汇
- increasedadj.增加的,增强的;
- concentrationsn.集中( concentration的名词复数 );专心;关注;浓度;
- orconj.或,或者;还是;不然,否则;左右;
- arevi.(用于第二人称单复数现在时,第一、三人称复数现在时)是;
- passedadj.已经通过的;已经过去的;考试及格的;(指红利)未及时发放的;
- foodn. 食物,食品;粮食;养料;资料;
- chainn.链条;手铐;约束;一连串;连锁店;
- asadv. 同样地,一样地;例如;
- decreasedv.(使)缩短,减小,减少( decrease的过去式和过去分词 );
- upadv. 在上面,在高处;起床,起来;向上;由低到高;
- 相关例句
For example, if the number of wolves and foxes decrease, the food chain is upset.
例如, 如果北极狼和北极狐的数量减少, 那食物链就会遭到破坏,就会脱节.
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Jasmine , an angry consumer , is arguing with Raymond, a representative from a fast food chain.
一位愤怒的消费者 贾斯敏 正和一家快餐连锁店的代表雷蒙德争论.
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The disappearance of some species breaks the ecological balance because the food chain is destroyed.
一些物种的消失破坏了生态平衡,因为食物链被破坏了.
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农业活动者们表示,他们深深担忧那些来自克隆的农场动物的产品进入食品链.
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This poses a threat to the food chain and consequently to human health.
这对食物链是一种威胁,并且会进而影响人类的健康.
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With no natural enemies, polar bears are at the top of the Arctic food chain.
一只睡觉的北极熊看起来是值得尊敬的,但是要提防没有天敌, 北极熊是北极食物链的顶尖.
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This will change the nature the food chain and break the balance of ecology at last.
这将改变大自然的食物链.最终导致生态的不平衡.
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But this time put 10 drops of red food coloring into the glass of water.
不同的是,这次要往杯子里滴十滴红色的食物色素.
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Some people also use food coloring mixed with each layer red and white, very good-looking.
有些人还用食用色素掺入,每层红白相间, 十分好看.
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