是improve vocabulary 还是increase vocabulary?

是improve vocabulary 还是increase vocabulary? improve,vocabulary,diaries,compositions,spirit,mind,wide,background各是什么意思? vocabulary 及其造句是? The best way to improve your vocabulary is through reading.请问through在这里是什么词性?是prep还是adv?为什么? vocabulary vocabulary vocabulary是不可数名词吗? vocabulary是可数名词,还是不可数名词? 新东方词汇进阶“Vocabulary 23000”=“Vocabulary Basic”+“Vocabulary 6000”+“Vocabulary 12000”吗?这本书是什么记忆技巧啊?是词根呢还是逆序还是什么? Miss li asks us to concentrate our attention_____ improve our vocabulary?A in B on C to求回答, 怎样记住vocabulary是词汇的意思?怎样记住vocabulary是“词汇；词汇量,词汇表”的意思? improve You should do what you could______(improve)your English.是用to improve 还是improve? 英语翻译The frequent change of English teaching textbooks is to enlarge learners' vocabulary and improve their grammatical competence.专业一点，因为这个问题我要写在试卷上的， Vocabulary &Grammar Vocabulary是什么意思 vocabulary是什么意思 I hope your English will ( ) soon.(improve)答案是improve还是be improved?