"a furtive manner"
"a sneak attack"
"stealthy footsteps"
"a surreptitious glance at his watch"
"backstairs gossip"
"his low backstairs cunning"
"backstairs intimacies"
"furtive behavior"
来自柯林斯例句
来自《权威词典》
来自《简明英汉词典》
来自《现代汉英综合大词典》
来自英汉文学 - 汤姆历险