Work areas were not sharply demarcated but extremely fluid and changing.
工作范围并无明显区分,但流动性极大.
辞典例句
Smaller, more sharply demarcated ulcers are more likely to be benign.
小的有明显分界的溃疡很可能是良性的.
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The ulcer is shallow and sharply demarcated, with surrounding hyperemia.
溃疡表浅、边界清晰, 周围有充血.
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