one-to-one汉语翻译：
a. 一对一的, 面对面的英语解释：
形容词 one-to-one:

used of relations such that each member of one set is associated with one member of a second set

详细解释：
one-to-one
adj.（形容词）
Allowing the pairing of each member of a class uniquely with a member of another class.
一对一的：让这一组的成员和另一组的成员一一匹配的
Mathematics Relating to or being a correspondence that assigns to each member of one set a unique member of another set.
【数学】 一比一：一组的数字和另一组的数字相比而形成一定的联系和概念

one to one