2019小学英语语法专题：英语中的八种词性 Words are used to form patterns of English grammar and syntax. Each word falls into one of eight categories referred to as parts of speech. Here are the eight c
2019小学英语语法专题：at school与at the school区别 at school 在上学 at the school 在学校里 at table 在进餐 at the table 在桌子旁边 at desk 在读书 at the desk 在课桌旁 in class 在上课 in the class 在
