网页十亿 (shí yì) = one billion; 百亿 (bǎi yì) = ten billion; 千亿 (qiān yì) = one-hundred billion; 3)兆 (zhào) / 万亿 (wàn yì) = one trillion. So as you can probably tell, there are three fundamental units (万、亿). Just with a few subsidiary characters, you are able to tell all the huge numbers under thirteen digits in Chinese!