I'm fluent only in English, in which I'm not particularly content with.

I have extremely basic understanding of Chinese.

我會說中文.

Though I can't really speak it (it being a tonal language doesn't help lol), I'm far better at reading it and even so I can barely understand it because the language is so vocabulary-focused and you've got to learn a separate character for like every word (though grammar isn't a problem).

Because of exposure with my mom and my twin, I can also understand some very basic French, but it's even worse than my ability to write Chinese, since I don't think I ever had formal education with French.

Posted by Swingball

And what if your voice doesn't work when you have to speak Chinese, too?

If it doesn't work, then you can just write it...? idk you should be able to tone your words just fine. It's just hard to learn that tone is really important to the language for English speakers learning Chinese. The same word for mother can mean horse if you tone it incorrectly. But I think Chinese still know the context, so they could still correct you if you mispronounce a word.