Undecenoic acid
[化] 十一碳烯酸
🧩 词语组成解析
🗣️ 情景例句
He prays every night before sleep.
他每晚睡觉着都祈祷。
To play with his son
和儿子玩耍
Yes, he did.He telephoned at nine o'clock.
是的，打了。他在9点钟又打电话。