- 重点词汇
- upstreamadv.向上游;逆流地;
- installedv.安装( install的过去式和过去分词 );安顿;安置;使…正式就职;
- must be该是;必须;一定是;准是
- ofprep. 关于;属于…的;由…制成;
- preventern.妨碍物;
- theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用，指事物或统称的人;用于姓氏的复数形式前，指家庭或夫妇;（指特定用途的事物）足够，恰好;每，一;当前的，本，此;（重读，表示所指的为知名或重要的人或事物）
- backflown.逆流，流向来源;返流;
- regulatorn.校准者，[机]调整器，校准器，调节器，[化]调节剂，[无线]稳定器，调节基因，（钟表的）整时器，标准钟;管理者，调整者，整理者;原则，标准;[英史]选举调查[监视]委员，监管者;
- 相关例句
Backflow preventer manufactured from 300 Series stainless steel for corrosion resistance.
防回流阀采用耐腐蚀的300系列不锈钢制造.
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From this causes two backflow agitation efficiency not high substantial clause.
由此引起二次回流搅动效率不高的重要原因.
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By 12:00. we were eating the dumplings. wrapped in peanut inside. backgammon or moral.
到了12:00. 我们一起吃饺子. 里面包着花生. 寓意步步高升.
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'No; I am going to play backgammon with you, if you like,'said the Doctor.
“ 我不想出去.如果你乐意, 我还想跟你掷骰子呢, ” 医生说.
英汉文学 - 双城记
Is the classic game of backgammon cell phone. The screen is beautiful!
手机游戏介绍:非常经典的五子棋手机游戏. 画面很精美!
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The more they probed into his background, the more inflamed their suspicions would become.
他们越调查他的背景，疑团就越多。
《柯林斯高阶英汉双解学习词典》
Robbie was there with his family, keeping rather in the background.
罗比和他的家人一起在那里，深居简出。
《柯林斯高阶英汉双解学习词典》
What had bonded them instantly and so completely was their similar background.
是相似的生活背景使他们很快变得亲密无间。
《柯林斯高阶英汉双解学习词典》
The background to the current troubles is provided by the dire state of the country's economy.
目前的问题是在国家经济岌岌可危的背景下出现的。
《柯林斯高阶英汉双解学习词典》
The meeting takes place against a background of continuing political violence.
这次会议是在政治暴力连续不断的背景下召开的。
《柯林斯高阶英汉双解学习词典》
