Dicyclohexylurea
二环己[基]脲
🗣️ 情景例句
You were four or five years old, I think.
当时你才四、五岁 我想。
Wake up and smell the coffee!
面对现实吧！
They had a definite meaning, for they were as near as early man could get to writing.
它们有着一定的含义，因为它们已接近古代人的文字形式。