I caught a look of surprise on her face.

　　我發現她面露驚奇。

　　With a look of horror, he asked if the doctor thought he had cancer.

　　他驚恐失色地問醫生是否認定他患了癌癥。

　　A look of terror flashed across his face.

　　他臉上掠過驚恐的神色。

　　A look of annoyance crossed her face.

　　惱怒的神色從她臉上掠過。

　　He was not a well man by the look of him

　　外表看來，他不太健康。