1. 反向：R 代表要建立一个反向(Reversed)的 SSH Tunnel,也就是要让对方可以连进来、而不是跟平常一样只是自己连到对方.

2. 反向的：reversed turning 反向回转 | reversed 反向的 | reversed 逆的

3. 翻转：reverse 相反 | reversed 翻转 | reversedly 颠倒地

4. 颠倒的：calligraphy 书法 | reversed 颠倒的 | homophonic 同音的,齐唱的

adj

1. turned about in order or relation

e.g. transposed letters

Synonym: conversetransposed

2. turned inside out and resewn

e.g. the reversed collar looked as good as new