1.some是一些的意思,后面可以加可数名词复数也可以加不可数名词,一般用于肯定句中 several是几个,数个的意思 2.collection收集的名词 3.miss sb.out 遗漏 4.raise up 升起 5.Since 用来说明动作起始时间,for用来说明动作延续时间长度 I have lived here for more than twenty years.我住在这儿二十多年了.I have lived here since I was born.我从出生起就住在这儿了.6.How long did he stay here?How soon will you arrive here?-I will arrive here in 3 hours How often does my daughter take the medicine?—Three times a day How many times did he purchase in this year?