We have no meanings for "sudden keenness" in our records yet.
1 She looked at me with sudden keenness , then dropped her eyes.
2 He looked at her with sudden keenness .
3 Nick glanced up again with sudden keenness .
4 Elrond raised his eyes and looked at him, and Frodo felt his heart pierced by the sudden keenness of the glance.
5 They had begun to read French together, Chris having developed a sudden keenness for the language which he was delighted to encourage.
6 The whole table watched with a sudden keenness , and they saw Bard turn, ever so slightly, just as Calamity passed behind the chair.
7 "You wouldn't have to tell him anything about me," watching her with a sudden keenness in his eyes.
8 "It's only since Cornelia came back that you have thought that," he said, at length, with sudden keenness .
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