陌唯言Y
天一布艺镇海店
传统tradition 报纸newspaper journal 杂志magazine 可能possible probable likely maybe 网络network
荷叶圆圆1980
这样测量比较准确。二、螺距:螺纹上相邻两牙在中径线上对应两点间的轴向距离。(母线通过牙型上沟槽和凸起宽度相等的地方的假想圆柱的直径,称为中径,中线圆柱的母线称为中径线。
Newspaper is an important media.You can obtain the latest home and abroad news f
It's very important for us to read some English newspapers.
to provide their reader...补语
54%of the students think the newspaper is better, because it will highlight the
Newspaper is an important media.You can obtain the latest home and abroad news f
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