sight副詞

副詞是sightlessly，中文意思是adv，看不見地

With a sigh， she returned her gaze to the nearer landscape， and stared sightlessly at the newly emerged tender silver-green leaves on the sagebrush lining the railroad.

嘆了口氣，她把目光移到近些的風景來，茫然地盯著沿著鐵路邊的山艾樹上新近冒出的銀青色的葉子。