Her sunburn made intimacy too painful.她的皮肤晒伤了，使得想要亲热一下都变得很痛苦。It takes time to build up intimacy.建立亲密关系是需要时间的。His claims to an intimacy with the President are somewhat exaggerated.他声称自己与总统关系密切, 这有点言过其实。She still ached for...
Cyclopropane rings are included within larger systems, such as triterpenes.三元环包含在较大的环系统中,像三萜类中.Under the optimum condition the yield of isopropyl cyclopropane carboxylate is 92 %.在最佳反应条件下,环丙烷羧酸异丙酯的产率达92%.Cyclopropane car...