题目内容：

Once we have that under our belts, we’ll look at the two classes of threads 请问under our belt

优质解答

belt 皮带,腰带under our belt,在皮带下面也就是说,“吃下肚子了”.成语 have sth.under your belt的大致意思是对某事/某技能有把握,某事/技能在你的控制之下或掌握里例句：Once you have the vocabulary under your...