难得到的
adj. unattainable ; rare
misc. un-come-at-able ; hard-to-get
双语例句原声例句
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中国人从中东获得了一种蓝色颜料，这是一种当时在中国很难得到的纯净的氧化钴，这种颜料只含有少量的锰。
From the Middle East the Chinese acquired a blue pigment—a purified form of cobalt oxide unobtainable at that time in China—that contained only a low level of manganese.
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在沙漠里水是很难得到的。
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真理总是很难得到的。
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And I do that very precisely because it'll teach you a little bit about how easy or difficult it is to do it and what kind of information you retrieve from a dietary assessment.
我这样要求是因为,这能教给你,做评估的难易程度,以及你们能从饮食评估中得到何种信息
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