藤椅编制工;

A clean border between the caner and healthy tissue can be difficult to find.
很难找到癌变的与健康组织间的明显界限.
来源:互联网摘选People are arguing that the increase in lung caner was a consequence of cigarette smoking.
对肺癌患病率的增长是不是吸烟的结果人们仍在争论中.
来源:互联网摘选
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简答网 · 初中英语作文

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简答网 · 初中英语作文

简答网 · 初中英语作文

简答网 · 双语娱乐资讯