1.promise to 许诺

She broke her promise to me.
她没有承担对我的许诺。

I only honoured my promise to your father.
我只不过完成了我对你父亲的承诺。

2.vow to 许愿；向…立誓

Thay explains that in the First Training we vow to cherish all life on Earth and not support any acts of killing.
老师解释说，在第一项训练中，我们许愿，珍惜地球上所有生命，不支持任何杀戮行为。

After you see your dentist, you vow to do better this time, you stay on it for a few days, maybe, and then let it go again, until your next appointment.
在看过牙医后，你会暗暗发誓，从现在开始要好好保护牙齿。 这样坚持了几天之后，很可能你又会恢复到从前的习惯，直到下一次再去看牙科。

3.according to 根据，按照；取决于

They do everything according to Hoyle.
他们一切都按照规定办理。

According to the Christian religion,Jesus Christ resurrected from death.
根据基督教的说法，耶稣基督曾死而复生。

4.focus on 集中于

If you focus the sun's rays on dry wood with a burning-glass, it will start burning.
如果你用取火镜使太阳光线在聚焦在干木头上，木头就会燃烧起来。

Our meeting focuses on the question of women's right.
我们会议的重点是妇女权利问题。