vt.

1. 以（钱，物等）打赌；与（某人）打赌[（+on）][O5][O1]
   I'll bet ten dollars on the chestnut horse.

   我要在这匹栗色马上下十美元赌注。

2. 敢断定，确信[+（that）]
   I bet you'll win.

   我肯定你会赢。

vi.

1. 打赌[（+on/against）]
   I bet against the feasibility of the plan.

   我打赌断定这个计划行不通。

n.[C]

1. 打赌[（+on）]
   Let's have a bet on the result of the election.

   让我们就选举结果打个赌吧！

2. 赌金，赌注
3. 被打赌的事物
   The white horse is a poor bet.

   那匹白马输的可能性大。

4. 意见，猜测[+（that）]
   My bet is that she won't refuse his invitation.

   我认为她不会拒绝他的邀请。

5. 对策，办法

v.

1. risk a sum of money or other valued item against someone else's on the basis of the outcome of an unpredictable event such as a race or game.
2. informal used to express certainty:
   he'll be surprised to see me, I'll bet.

n.

▸informal a candidate or option offering a specified likelihood of success:

Allen looked a good bet for victory.