Conventions
n. 惯例；会议；约定（convention的复数）
✅ 同义词
🗣️ 情景例句
Oh, you've been here before.
噢，你以前来过的。
How many are there in your family?
在你的家庭有多少人？
Oh ,yes! Here it is!
噢，是的！在这儿啦！