作者对谷歌承诺的态度是肯定的。

The author's attitude toward Google's pledges is one of affirmation.

他们承诺降低香烟中的尼古丁含量。

They promised to reduce the nicotine content in cigarettes.

一旦你做出承诺，就必须遵守。

Once you make a promise, you must keep it.

但是，这样的承诺也会削弱自由感。

But such commitment can also weaken a sense of freedom.

Entergy实现其承诺的能力。

Entergy's capacity to fulfill all its promises.