two-way mirror
noun/ˌtuː weɪ ˈmɪrə(r)/
/ˌtuː weɪ ˈmɪrər/
(also one-way mirror)
- a piece of glass that is a mirror on one side, but that you can see through from the other
单向透明玻璃镜（一面是镜子，但从镜后可看到镜前面） - He watched them through a two-way mirror.
他透过双向透明玻璃镜看着他们。
- He watched them through a two-way mirror.