Polyanhydrides
[化] 聚酐类
🗣️ 情景例句
He has to drive for twenty minutes to get from his house to his office.
从他的家到他的办公室有20分钟的车程。
Dying is as natural as living.
死亡与生存一样自然。
But so far, the public has expressed its gratitude to the students in letters to the Press.
但到目前为止，公众已经向新闻界写信表达他们对学生们的感激之情了。