- 重点词汇
- ultrasonicadj.[声]超声的;超音波的，超音速的;
- sound wavesn.音波( sound wave的名词复数 );
- ofprep. 关于;属于…的;由…制成;
- frequencyn.频繁性;[数][物]频率，次数;频率分布;
- highadj. 高的;高尚的，崇高的;高音调的;高级的，高等的;
- devicesn.设备;装置( device的名词复数 );花招;（为实现某种目的的）计划;手段;
- usen.（使）用;用法;用途，功能;使用权;使用价值;
- extremelyadv.极端地;非常，很;去;绝;
- 相关例句
Soft loans and non-recourse finance packages are available in certain circumstances.
软贷款和无追索权财务包在特定情况下可用.
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The men set off fireworks away evil spirits as wads of paper money smoldered the rubble.
男人们点燃鞭炮驱散邪灵,将纸钱揉在废墟中静静燃烧.
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Much of their work is marked by a computer programme Computer-marked assignments.
他们的作业多数是由计算机程序来批改的,这被称为是“电脑批改作业”.
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The police are worried about the increase in the number of stabbings in the city.
市内利器伤人案增多,警方甚感忧虑.
词典精选例句
Chinese police respond to the stabbings at the Drum Tower in Beijing on Saturday.
中国警方对这起星期六发生在北京鼓楼的刺杀事件做出了反应.
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Merchants can create, change, and maintain their Yahoo ! Storefronts through a Web browser.
厂家可以通过网页浏览器来创建 、 改变和维护他们的商店.
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Guolanjun addition to a brick home on adding the beds, two wardrobes, no other furniture.
郭兰军家除了一张砖头砌的床, 两个衣柜, 再无其它家具.
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