大家在查：确实无能为力罗阿尔·阿蒙逊罗德·阿蒙森洛巴诺夫斯基野生酸枣 Rakatan kiboshing 24.61% rugulosa 1862年7月17日

坚硬难

坚硬难

坚硬难

坚硬难

1

Development is no longer China's only truth . But it is still hard .

发展再也不是中国唯一的道理，但仍然是一枚坚硬难啃的果子。

2

In each household , I was served a plate of tough , stringy chunks of meat, and I ate them dutifully, smiling in appreciation .

每一户人家总会款待我一盘坚硬难嚼的大块牛肉。我只得负责任地吃完，微笑以示感谢。

3

Treating with Hardness Roof Coal in Fully-mechanized Working Face with Caving

综放工作面坚硬难放顶煤的处理对策

4

Inquiring into Strong Roof Control in Luling Mine

芦岭矿坚硬难冒落顶板管理探讨

5

Efficient control of strong and difficult collasp roof

坚硬难放顶板的有效控制

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