Xanthates
黄原酸盐
🗣️ 情景例句
Fine. We were just wondering about this trunk.
好啦。我们正纳闷这只大衣箱呢。
You know the proverb, Smile and the world smiles with you, cry and you cry alone.
要知道有句格言“微笑，世界与你同欢乐；哭泣，你只能独自悲伤”。
The high jump
跳高