68. It's a deal. 
一言为定。 
用法透视 
这句话的含义和用法与汉语的"一言为定"相同。 
支持范例 
1. It's a deal. I'll pick you up tomorrow morning. 
一言为定。我明早来接你。 
2. You can use my car this weekend. It's a deal. 
你周末可以用我的车。一言为定。 
3. I'll let you know as soon as she comes back. It's a deal. 
她一回来我就告诉你。一言为定。 
会话记忆 
A: How about a game of tennis? 
来比一场网球如何? 
B: Okay. Loser has to take out the trash for a month. 
好哇!输的人罚倒垃圾一个月。 
A: It's a deal. 
一言为定。 
B: See you in the court. 
咱们球场上见