"a screen of trees afforded privacy"
"under cover of darkness"
"the brush provided a covert for game"
"the simplest concealment is to match perfectly the color of the background"
"covert actions by the CIA"
"covert funding for the rebels"
"a woman covert"
来自柯林斯例句
来自柯林斯例句
来自《简明英汉词典》
来自《现代英汉综合大词典》
来自《现代英汉综合大词典》