Tā duì shìchǎng biànhuà de xiùjué fēicháng ruìmǐn.
His nose for market changes is extremely sharp.
Tips
usage
Near-synonym of 敏锐, with the same characters in reversed order. 敏锐 is far more common in modern Mandarin; 锐敏 is somewhat literary or used in specialized contexts (often medical or sensory).