keenness

n.

敏锐；

1. The scabbard is content to be dull when it protects the keenness of the sword.
   刀鞘保护刀的锋利，它自己则满足于它的迟钝。
2. The general's speech infused keenness into the men.
   将军的演讲给人们注入了激情。

Students' keenness on use of e‐resources
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Power Politics ; the Approval of a New Ultra-Mega Power Plant for Bihar Is Yet Another Pointer to the UPA's Keenness to Woo Chief Mi...
Sudan: Kiir reaffirms government keenness on finding peaceful settlement to Darfur problem
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Three firms evince keenness to set up power plants in Odisha
Patients' preferences for ways to communicate benefits of cardiovascular medication.
Apparatus for ascertaining vision sensitivities
Mechanical, physical, and musical ability of the native races of Alaska.