Inpadoc
世界专利数据库
🗣️ 情景例句
It's the way it should be.
本该如此。
Every tree is known by its own fruit.
观其言行，知其为人。
Yes, I remember. You were not here yesterday. What was wrong? Were you ill?
是的，我记得。你昨天没有来。怎么啦？你病了吗？