If you can write or speak even just a little English, you have surely used prepositions -- words like to, in, on, at and by. A preposition is a word or group of words that shows direction, location or time. Today on Ask a Teacher, we have a question

发表于:2018-12-19 / 阅读(121) / 评论(0) 分类 2018年VOA慢速英语(十一)月

Grammar Girl here. Today's topic is how to use the word myself. Misusing myself is definitely one of the top things people complain to me about. Here's an example: caller comment The caller is right; people seem to be so afraid to use the words me an

发表于:2019-01-02 / 阅读(44) / 评论(0) 分类 英语语法 Grammar Girl

Callum:Hello. In recent programmes in this series, Who on Earth are we? Marc Beebys looked at some of the more obvious ways that cultures can be different from one another -the different ways we use language, or non-verbal communication, for example

发表于:2019-01-07 / 阅读(528) / 评论(0) 分类 英语讨论

Legal Lad here, filling in again for Grammar Girl. The poor girl is still sick. She asked me to thank everyone who has sent get well messages. She appreciates them a lot. Today's topic is how to use the word myself. Grammar Girl says that how to use

发表于:2019-01-30 / 阅读(107) / 评论(0) 分类 英语语法 Grammar Girl

66 神秘的彗星

发表于:2019-01-30 / 阅读(93) / 评论(0) 分类 科技之光

拓扑排序 topological sort 偏序 partical order 拓扑有序 topological order AOV网 activity on vertex network AOE网 activity on edge network 关键路径 critical path 匹配 matching 最大匹配

发表于:2019-02-01 / 阅读(58) / 评论(0) 分类 实用英语