Love is t the master key to a Dating happy family.

爱是启开快乐家庭的万能钥匙。

youdao

Stops of light at first seems confusing and not as important to those who don't understand exposure, but if you ever plan to become a master at photography, learning the terminology is key.

ENGADGET: Primed: What is aperture, and how does it affect my photos?