Piperidine
n. [化]哌啶,氮杂环己烷
🗣️ 情景例句
What do you want to study?
你想学什么？
Time discloses (or reveals) all things.
时间会暴露一切。
When the fire had at last been put out, the forest authorities ordered several tons of a special type of grass-seed which would grow quickly.
在大火最后被扑灭后，森林管理当局订购了好几吨一种生长迅速的特殊类型的草籽。