"risk is the reciprocal of safety"
"reciprocal aid"
"reciprocal trade"
"mutual respect"
"reciprocal privileges at other clubs"
"the reciprocal ratio of a:b is b:a"
来自柯林斯例句
来自《简明英汉词典》
来自柯林斯例句
来自《现代英汉综合大词典》
来自辞典例句