1. 秘密地：surrender 交出 | surreptitious 秘密的 | surreptitiously 秘密地
2. 暗中/暗中地：surreptitious /秘密的/暗中的/偷偷摸摸的/ | surreptitiously /暗中/暗中地/ | surrey /英国南部的州名/四轮游览马车/
3. 秘密地; 不正当地; 暗中地; 偷偷地 (副)：surreptitious 暗中的, 偷偷摸摸的, 秘密的 (形) | surreptitiously 秘密地; 不正当地; 暗中地; 偷偷地 (副) | surrey 萨里式游览马车 (名)
1. Sometimes we would surreptitiously dial up the knob a bit so our drip would pick up the pace.
adv
1. in a surreptitious manner
e.g. he was watching her surreptitiously as she waited in the hotel lobby
Synonym: sneakily