实战口语情景对话 第433期:News Source 信息来源

重点讲解：
1. either...or...
不是……就是……；要么……要么……；
eg. He gave me an ultimatum: either Tom had to leave, or me.
他向我发出了最后通牒：不是汤姆离开。就是我离开。
eg. Either one goes forward or he will be left behind.
不进则退。
2. in depth
深入地；彻底地；全面地；
eg. We will discuss these three areas in depth.
我们将深入探讨这3个领域。
eg. Their achievements have already been analysed in depth and do not require further discussion.
他们的成就已经全面分析过了，无需再议。
3. come along
（尤用于鼓励别人参加某活动）来吧，一起来；
eg. Come along and join the ball game.
过来和我们一块儿打球。
eg. There's a big press launch today and you're most welcome to come along.
今天有一个大型的媒体推介会，非常希望您能光临。
4. take up
接受，答应（提议或挑战）；
eg. You should take up my suggestion and start saving money.
你应该接受我的建议，开始存钱。
eg. I'd like to take up your offer of a ride into town.
我愿接受你的邀请，搭你的车进城。