去年，它的零售价格下降了百分之二十。

Last year its retail price fell20 per cent.

youdao

现在，这一数字急剧地下降到只有百分之二十。

Now, that number has fallen sharply to only 20%.

youdao

现在，这一数字急剧地下降到只有百分之二十。

Now, that number has fallen sharply to only 20%.

youdao