My topic is to do with how to prevent the bird flu.

我的话题有关怎样预防禽流感。

youdao

Now, you know how to prevent the flu? If you have any good advice, would you please let us know.

现在，你知道怎样预防流感了吗?如果你有什么好的忠告的话，请你告诉我们。

youdao

Now, do you know how to prevent swine flu?

现在，你知道如何预防猪流感了吗？

youdao