Macrocyclic polymer
[化] 大环聚合物
🧩 词语组成解析
[机] 大环的
🗣️ 情景例句
Not yet.
还没有。
How long will it take for a package to get to California?
你把包裹寄到加州要多长时间?
Apparently what happened was that water collected on these tar pits, and the bigger animals like the elephants ventured out on to the apparently firm surface to drink, and were promptly bogged in the tar.
沥青坑里积存了水，大象那样的大动物冒险到似乎坚固的水面上去饮水，立即掉进了沥青坑。