1, To sue: to take someone to court in a legal disagreement.起诉：在法律纠纷中把某人告上法庭。
2, They broke our contract and didn't pay.，so we sued them and won.他们违反了我们的合同，没有付款，所以我们起诉他们并赢了。
测验： We had to be very careful when we talked to her because we didn't want to be sued.
4, To restrict： to put limits on something.
5, This is a restricted area ，so stay away.
6, We need to restrict them from talking to anyone about our project.
测验： We can't trust him， so we will have to restrict his activities until we know him better.
7, To negotiate ：to deal with or bargain with others to reach an agreement.谈判：处理或与他人谈判达成协议。
8, Instead of starting a war, we should negotiate and find a way to compromise.我们不应该发动战争，而应该通过谈判找到妥协的方法。
9, We are trying to negotiate a better deal, but it isn't easy.我们正设法谈成一笔更好的交易，但这并不容易。
测验： The price is too high， but if we negotiate, we may be able to get a discount.
10, Responsible for or responsible to： to be responsible for something means to have the job of getting it done or taken care of.负责或负责：负责的事情是完成它的工作或照顾。
11, If you are responsible to someone, it means that you're working under their control.如果你对某人负责，这意味着你在他们的控制下工作。
测验： We have many responsibilities ，but she is the one responsible for product development.我们有很多责任，但她是负责产品开发的。
12, Oversee or supervise :to control or direct a process or project.监督或监督：控制或指导一个过程或项目。
13, One of his responsibilities was to supervise the rescue operations and keep things under control.他的职责之一是监督救援行动，控制局面。
14, As product manager，she oversees the work of several departments.作为产品经理，她负责监督几个部门的工作。
测验： ①The new project is behind schedule because nobody oversees how the departments work together.
② We have unlimited access to their research and there are no restrictions on how we use the information.我们可以无限地访问他们的研究，并且对我们如何使用这些信息没有限制。
③ He never wants to negotiate，so he has lost several important customers.
④He is responsible to the CEO, so he can't sign the contract without her final approval.他对首席执行官负责，所以没有她的最终批准他不能签合同。
⑤ When we got to the accident, everyone was confused because there was nobody there to supervise.