Ys
abbr. 屈服强度（Yield Strength）；黄斑（Yellow Spot）
🗣️ 情景例句
Earth day should be every day.
每一天都应该是地球日。
What a beautiful garden you have!
你的花园真漂亮。
It is a world of red sandy deserts (hence its name----the Red Planet),
红色行星），