Only if you were given the attention a Chinese child gets.

In Spain, the immigrants that I talked to said it took them about 3 years to become proficient, and the first year was horrendous and hard as they could not communicate the essentials of daily life (going to stores, navigating public transit).

At twenty, I moved countries. I literally had to lie and say that I do not speak English to get the locals to speak to me in the local language.

Telling them that I'm Finnish worked well enough, until I was introduced to a Finn. That was one of the more awkward moments of my life!

You have to have the desire to improve and communicate, which a child who speaks no language has. Plenty of people live in language bubbles in foreign countries, and barely learn at all, but if you actually expose yourself to the language as much as possible, it definitely works.