Why is Doraemon blue?

The Japanese pronunciation of the name Tinker Bell is Doraemon, which is translated into Doraemon according to the pronunciation. However, when it was first introduced to China, the publisher gave it Tinker Bell. This name will suddenly be renamed because the publishing house of the singles has changed. Now these cartoons are published in Ji Mei, but in the past, it wasn't just Tinker Bell who changed the names of Xin Fu, Jing Xiang and Pang Hu's husband. The real name of the letter husband is letter husband, Jingxiang and Jingyifu, and Pang Hu is fat.

Doraemon was yellow when it was first made, which sounded more like a girl. Later, when I slept, my ear was bitten by a robot mouse. I was very sad, so I ran to a deserted place and cried for a long time. Finally, I cried until my face was blue, and my voice became a little hoarse because I cried for a long time.