barter n.物品交换, 实物交易v.物品交换, 交换 commerce n.商业 commodity n.日用品
media n.媒体 convenient adj.便利的, 方便的 impetus n.推动力, 促进
tangible adj.可触摸的,有形的 origin n.起源, 由来, 起因 compensation n.补偿, 赔偿
tribute n.贡金;贡物 exchange vt.交换 precious adj.宝贵的, 贵重的
metal n.金属 mint v.铸造 shell n.贝壳, 壳
primitive adj.原始的, 远古的, 粗糙的, 简单的 cowrie n. 货贝
moulding n.模制, 浇铸 bronze n.青铜, copper n.铜
stamp vt.压制;冲压 crudity n.粗糙;粗陋.原材料, 天然物质
Past and present教案7
Travelling教案2
Travelling教案1
revision one导学案
will people have robots教案3
Seeing the doctor教案2
Will people have robots教学案4
Seeing the doctor教案1
will people have robots教案8
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the forbidden city导学案
Sport教案2
Will people have robots教学案1
My future life教案
Past and present教案5
Sport教案4
Travelling教案4
Will people have robots导学案8
Have you read Treasure Island教案1
will people have robots教案6
Seeing the doctor教案3
Have you read Treasure Island教案3
Where did you go on vacation教案4
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Travelling教案3
smile and say hello导学案
Past and present教案6
Will people have robots教学案2
will people have robots教案5
Seeing the doctor教案5
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