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1·She prims her thin lips after every mouthful of tea.

她每喝完一口茶都让自己的薄嘴唇带出严肃的表情。

2·Design requirements: the use of algorithms for network Prims minimum spanning tree to the text of the various forms of output spanning tree edges and their weights.

设计要求：利用Prims算法求网的最小生成树；以文本形式输出生成树中各条边以及它们的权值。

(1)prim and proper循规蹈矩的；一本正经的