Flavanol
黄烷醇
🗣️ 情景例句
He gave them to me to hold on to them
他给我戒指， 要我自己保管，
No pleasure without pain.
没有无痛苦的欢乐。
He noticed that a river of liquid rock was coming towards him.
他发现有一股岩浆正向他流过来，