on average l see about one or two buildings a month suffering from nickel sulphide related failures(请问老师 related failures是不是过去分词短语做nickel sulphide的定语后置?为什么不能用现在分词relating failures呢?)谢谢
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 16:13:27
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