Definition: If your eyes are fixed on something, you are looking at it continuously. Level: C2
我的目光一直凝视着他的脸。
I kept my eyes ___fixed on his face.
他的眼睛凝视着遥远的地平线，陷入了沉思。
His eyes were ___fixed on the distant horizon, lost in thought.
她凝视的目光暴露了她对那个问题的全神贯注。
Her ___fixed gaze betrayed her intense concentration on the problem.
