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Cucurbituril is a macrocyclic cavitand compound with two portals.是什么意思？

Cucurbituril is a macrocyclic cavitand compound with two portals.

葫芦脲是一种具有大环空腔、两端开口的葫芦状分子.

相关词汇
is macrocyclic compound with two portals

is

vt.& vi. 是（be的三单形式；n. 存在；

macrocyclic

adj. 大环的；

compound

n. 场地，复合物，（筑有围墙的）院子，复合词；

with

prep. 和，跟，随着，关于，和…一致；

two

n. 两个，两个东西，两点钟，一对；adj. 两个的，我

portals

n. 入口( portal的名词复数 )，桥门，[解剖学]肝门，出孔；
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