慢速英语:American Scientists Work on Printing of Living Tissue Replacements

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词汇讲解：

1. tissue n.薄纸，棉纸; [生]组织; 一套
例句：Human tissue is made up of cells. 
人体的组织是由细胞构成的. 

2. require vt.要求; 需要
例句：Global markets require multilateral rules.
全球市场需要多边规则。

3. receive vt. 收到; 接到
例句：We trust to receive a cheque at your earliest convenience. 
我们希望早日收到你的支票。
 
4. create vt.创造，创作
例句：Designers should create design solutions that are: 
设计师应当创作这样的解决方案。 

5. replace vt.替换; 代替
例句：We undertake to replace any product not up to the specifications. 
产品不合规格，保证退换。 

6. reality n.现实，现实性
例句：In reality, I didn't get a nickle for signing. 
其实，签约时我一分钱也没拿到。