"She often sings in Engpsh" 这句话的意思是 "她经常唱歌用英语"。
其中"often" 是副词,意思是"经常"。
例句：
She often sings in Engpsh at karaoke nights. (她经常在卡拉OK之夜用英语唱歌)
He often reads in Engpsh before bedtime. (他经常在睡觉前用英语阅读)
这个句子是根据英语语法规则构造而成，she 是主语，sing是动词，in Engpsh 是表示语言的介词短语，often 是副词修饰动词。