oblige --- much obliged, be obliged to

Test

oblige               
[英] [əˈblaidʒ] [美] [əˈblaɪdʒ]
vt.强制，强迫；使负债务；使感激；施惠于
vi.施恩惠；帮忙，效劳                                                                                                

• 过去式：obliged
• 过去分词： obliged
• 现在分词：obliging
• 第三人称单数： obliges
  

1. VERB (形势、规定或法律)强迫，迫使 If you are obliged to do something, a situation, rule, or law makes it necessary for you to do that thing.  

• The storm got worse and worse. Finally, I was obliged to abandon the car and continue on foot...
  暴风雨愈发猛烈，我最终不得不弃车步行。
• This decree obliges unions to delay strikes.
  该法令迫使工会推迟罢工。
  

2. VERB 施恩惠于；帮…的忙 To oblige someone means to be helpful to them by doing what they have asked you to do.         

• If you ever need help with the babysitting, I’d be glad to oblige...
  如果你什么时候需要找人照看孩子，我很乐意帮忙。
• We called up three economists to ask how to eliminate the deficit and they obliged with very straightforward answers...
  我们打电话给3位经济学家询问如何消除赤字，他们坦率地给予了答复。
  

3. CONVENTION(惯用语)                                                                                                                                                                 感激不尽;不胜感激 People sometimes use obliged in expressions such as ‘much obliged’ or ‘I am obliged to you’ when they want to indicate that they are very grateful for something.                                                                                                   

• Much obliged for your assistance...
  对您的帮助我不胜感激。
• Thank you very much indeed, Doctor, I am extremely obliged to you.
  大夫，太感谢您了，您真是我的大恩人。
  

4. CONVENTION(惯用语)                                                                                                                                                                 如蒙…将不胜感激;劳驾…好吗 If you tell someone that you would be obliged or should be obliged if they would do something, you are telling them in a polite but firm way that you want them to do it.

• I would be obliged if you could read it to us.
  您若能把它读给大家听，我将不胜感激。
  

English description:
Verb
1. force or compel somebody to do something;
2. bind by an obligation; cause to be indebted;
3. provide a service or favor for someone;