Sr.
abbr. (=Senior)(=Sir)；〈外(=Senhor)\\n
🗣️ 情景例句
Keep your nose to the grindstone; you'll succeed.
埋头苦干，总有成功的一天。
The restaurant is on the second floor.
那餐厅在二楼。
Something may have happened to her.
她可能发生意外了。