As he walked home, Fagin's eyes were sharp with suspicion.

在回家的路上，费金两眼放出狡猾的光，充满了疑虑。

Her tone was sharp with anger.

【tone】她很气愤，语气尖刻。

Only twice more did the housekeeper reappear, and then her stay in the room was very short, and Mr. Jaggers was sharp with her.

管家只又出现了两次，然后她在房间里停留的时间很短，贾格斯先生对她很敏锐。