Ys
abbr. 屈服强度（Yield Strength）；黄斑（Yellow Spot）
🗣️ 情景例句
kick off your shoes, and sit down.
脱掉你的鞋子， 坐下来。
Say not all that you know, believe not all that you hear.
莫道全所知，莫信全所闻。
Here are some more Waiter-and- Customer jokes.
这里有一些“服务员与顾客之间”的笑话。