4周搞定2000+托福核心词
secretive
常考释义
The Byzantines were as secretive as the Chinese, however, and for many centuries the weaving and trading of silk fabric was a strict imperial monopoly.
但是，拜占庭人和中国人一样保守此机密，在当时的几个世纪里，丝绸的纺织和交易严格囿于皇室垄断。
来源于：剑雅11-Test3adj. 秘密的
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