1.Hello? Mom, I gotta call you back.
【句子翻译】喂?妈妈,我等会儿再打给你。
【口语讲解】
gotta是美国口语,相当于have got to和have to,意思是“必须”;
Gotta go. Check you later.
得走了。以后再打电话给你。
I gotta/I've gotta go.
我得走了。
call back“回电话”;
Shall I tell him you'd call back, or do you want him to call you?
要我告诉他你会再打电话来,还是叫他打电话给你?
2.End. Why, does it matter?
【句子翻译】约会结束时,怎么了?很重要吗?
【口语讲解】does it matter?(要紧吗?)是It matter(这很要紧)的一般疑问句形式;
其否定形式是It doesn't matter(没关系,不要紧)。