clandestine
01
秘密的, 隐蔽的
carried out secretly or with concealment to avoid detection
例子
They exchanged clandestine messages using encrypted codes to ensure their communication remained undetected.
他们使用加密代码交换秘密信息，以确保他们的通信不被发现。
词汇树
clandestinely
clandestine
