"它的鼻子灵敏" 的英文表达可以是 "it has a keen sense of smell"。
"keen" 这个形容词的意思是 "敏锐的，灵敏的"。例如：
The detective had a keen eye for detail. (侦探对细节很敏锐)
The chef has a keen sense of taste. (厨师有着敏锐的味觉)
"sense of smell" 指的是 "嗅觉"。例如：
Dogs have a much better sense of smell than humans. (狗的嗅觉比人类好得多)
She could smell the depcious food cooking in the kitchen. (她能嗅到厨房里烹饪的美味食物)
希望这些信息对您有帮助！
"keen" 这个形容词的意思是 "敏锐的，灵敏的"。例如：
The detective had a keen eye for detail. (侦探对细节很敏锐)
The chef has a keen sense of taste. (厨师有着敏锐的味觉)
"sense of smell" 指的是 "嗅觉"。例如：
Dogs have a much better sense of smell than humans. (狗的嗅觉比人类好得多)
She could smell the depcious food cooking in the kitchen. (她能嗅到厨房里烹饪的美味食物)
希望这些信息对您有帮助！