Why using a sign is better than using a sound?

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Why using a sign is better than using a sound?

a sign is like this

a sound is like this

If you read a sign, you understand it quickly. 

If you read a sound like this,

you need to translate the sound into meaning. It means "no smoking" in Portuguese.

You are using different parts of your brain to get the meaning of the sign or the sound.

Every Chinese word is a sign.

Chinese need not to translate the sound into meaning in their brain.

It is the reason why people always say Chinese is a right brain language.