一、外显连接 所谓外显连接是指用特定的连接词将相关信息进行连接。通常情况下，例子作为论据由for example, for instance, like, such as, take… as 等引出。 如：it is undeniable that mobile phones have facilitated our lives in many different ways. For example, when an emergency occurs, such as a traffic a...