adj.偷偷摸摸的，鬼鬼祟祟的，遮遮掩掩的

He gave her a furtive glance from across the room.
他从房间的另一头偷偷地看了她一眼。
The thief made a furtive attempt to escape but was quickly caught.
小偷试图偷偷逃跑，但很快就被抓住了。
She made furtive movements, as if afraid of being seen.
她做出偷偷摸摸的动作，好像害怕被人看见。
He slipped out of the house with a furtive look around.
他环顾四周，偷偷地溜出了房子。
There was a furtive exchange of notes between the two students during the exam.
考试期间，两个学生偷偷交换了纸条。
He gave a furtive smile, not wanting to draw attention to himself.
他偷偷地笑了，不想引起别人的注意。
The child made furtive efforts to open the cookie jar without being noticed.
那孩子偷偷试着打开饼干罐而不被发现。
They communicated in furtive whispers so as not to alert the guards.
他们用悄悄话偷偷交流，以免惊动守卫。
She took a furtive sip of coffee while her boss wasn't looking.
在老板没注意的时候，她偷偷喝了一口咖啡。
He made furtive glances at his phone during the meeting, hoping no one would notice.
会议期间，他偷偷看了看手机，希望没人注意到。