as greave as an owl

• 摆出一副严肃的神气；非常严肃

as greave as an owl的用法和样例：

例句

1. He looked very grave as he entered the room.
   他进屋时表情非常严肃。
2. Although Rahab worked as a prostitute she thought very seriously about the news she had heard about the God of Israel.
   尽管喇合是一个妓女，但是她非常严肃地看待她所听到的有关神的选民以色列人的消息。