Aldehydrol
水合醛
🗣️ 情景例句
May I ask for a wake-up call tomorrow morning?
明早我可以要求晨叫服务吗？
He seldom came to see his wife, did he?
她不来看他妻子，是这样吗？
They may also have used wood and skins, but these have rotted away.
他们也可能用过木头和兽皮，但这类东西早已腐烂殆尽。