schoolwork that is not up to the mark.
标准的学业成绩
作业,课堂作业,课外作业
词课程以外的;;schoolwork that is not up to the mark.
标准的学业成绩
The important machinery of the schoolwork soil compaction is the vibroll whose superiority makes it take 90% of the market of road roller.
压实作业的重要机械就是振动压路机，振动压路机的压实的优越性使其占压路机市场的90%的份额。
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经过人工审核，其表
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