vt.

1. 乞讨
   From whom did he beg this money?

   他向谁讨到这钱的？

2. 请求，恳求[O2][+to-v][+that]
   I beg that neither of you will say anything.

   我请求你们谁也别说了。

   She begged him to remain at home.

   她恳求他呆在家里。

3. （礼貌用语）请（原谅），请（允许）[+to-v]
   I beg to suggest a different plan.

   请允许我提出一个不同的计划。

4. 假定……为正确

vi.

1. 乞讨[（+for）]
   The blind man begged for a living.

   那个盲人以乞讨为生。

2. 请求，恳求[（+of/for）]
   The criminal begged for mercy.

   那个罪犯恳求饶恕。

3. （狗）蹲坐举前脚于胸前

v.

1. ask (someone) earnestly or humbly for something.
   ▸ask for (something) earnestly or humbly:

   he begged their forgiveness.
   ▸ (beg off) withdraw from a promise or undertaking.
2. ask for food or money as charity.
3. (of a dog) sit up with the front paws raised expectantly in the hope of a reward.