音标：['tәu'mɑ:n] ；

古波斯之金币

n. A money of account in Persia, whose value varies greatly at
different times and places. Its average value may be reckoned at about
two and a half dollars.

词型变化：名词复数形式 : tomen

Canning Food

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VOA2003（下）-发展与科学

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This is Scientific American 60-second Science,I'm Sophie Bushwick.Got a minute?Scientists have used synthetic DNA to store digital files,including a photo,Shakespeare's sonnets and an audio recording on Martin Luther King. And the pursuit of happines

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经济学人商业系列

新西兰英语 771 Budget money for water storage

First, listen to March 4th 2013 to hear about drought on farms this past summer. The Minister for Primary Industries, Nathan Guy said that in the long term the government wants to invest $400m in regional water irrigation. In the short term, the Budg

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新西兰英语

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王强口语第二册

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CCD 分辨率 CCD Pixels 影像分辨率 Image Size ISO 感光度 Sensitivity 镜头性能 Lens 数字变焦 Digital Zoom 自动对焦 Autofocus 手动对焦 Manualfocus 一般对焦范围 General Shooting Distance 近拍对焦范围 Macro Shooting D

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ancillary transmission equipment