Tetrahydroxyflavanol
四羟基黄酮醇
🗣️ 情景例句
who have made my stay in the United States so wonderful.
是你们使得我在美国的生活如此多采多姿。
That important man is very unassuming in his manner.
那个要人彬彬有礼，是一位毫不摆架子的人。
He did everything very slowly.
他做什么都很慢。