Opp
abbr. 定向聚丙烯
📖 牛津释义
opp
abbr 缩写 = opposite.
🗣️ 情景例句
I'm relieved to hear that.
你的话使我松了一口气。
It started out to be a beautiful day.
刚开始天气不错。
We must decide which one to buy.
我们必须决定要买那一台。