sneak in 偷偷进入
sneak out 偷偷溜出
sneak away 偷偷离开
sneak peek 偷看
sneak attack 偷袭
sneak into 溜进
A: Why does he always sneaks out at night?
A：他为什么总是在晚上偷偷溜出去？
B: I think he is meeting his friends secretly.
B：我觉得他是在偷偷见朋友。
1) 在不被注意的情况下悄悄移动或行动
2) 指秘密进入或离开某个地方
3) 在网络或现实中隐蔽进行某种行为
1. 偷偷地做；溜进或溜出
2. 暗中进行的行为（第三人称单数）
verb
1. to move or do something quietly and secretly so that no one notices
Synonym: creep, slip