I saw him cast a furtive glance at the woman at the table to his right.
我看到他偷偷地掃了一眼坐在他右邊桌子旁的女人。
He made one or two furtive phone calls.
他鬼鬼祟祟地打了一兩個電話。
There was something furtive about his behaviour and I immediately felt suspicious.
他鬼鬼祟祟的,我馬上覺得有些可疑。