请翻译一下以下英文俚语 get that straight\get one's teeth into something

get that straight:搞清楚，弄明白
get one's teeth into something：认真对待,全神贯注于,死死咬住

例句：I like getting my teeth into a good book.
我喜欢全神贯注地读一本好书。

let's get that straight.让我们把那件事情弄明白

知道\认真对待,全神贯注于,死死咬住

get (or sink) one's teeth into work energetically and productively on (a task) : the course gives students something to get their teeth into.
积极投入某个工作、活动

get that straight 弄清楚事实/清楚地了解情况

get one's teeth into something：精力充沛地开始处理某事/急迫地开始做某事

get that straight了解，弄清楚，办好
get one's teeth into 死死咬住; 紧紧抓住; 认真对待; 全神贯注于