Although it was only three dollars, I couldn't remember anyone doing something so nice for me.

尽管只有3美元，我想不起来有谁为我做过这么好的事。

youdao

Only by doing so can we maintain the vigor and vitality of our nation.

只有这样做，我们才能使的国家保持生机和活力。

youdao

It is my profound belief that not only do we all need nature, but we all seek nature, whether we know we are doing so or not.

我深信，我们不仅都需要自然，而且不管我们是否知道自己正在这样做，我们都在寻找自然。

youdao

Saudi Arabia's foreign minister is only doing so on the condition that he doesn't have to shake hands with Israelis.

NPR: Annapolis Peace Conference Begins

We uphold our most cherished values not only because doing so is right, but because it strengthens our country and it keeps us safe.

WHITEHOUSE: President Obama: Our Security, Our Values

As I noted in my original piece, the issue that concerns me is not about Google digitising the world's books, but about only Google doing so.

BBC: Turning the page on Google books