翻译。1，我得走了。2，我得挂（电话）了

I gotta go.
I gotta hang up.
其实两句都可以用I gotta go.是I got to go的简写

1、i've got to go now.
2、i've got to hang up.
这是相对美式一点的说法

1. got to go
2. i have to hang up

1.I have to go
2.I 'll have to ring

i have to go
i have to cut off

比较口语话的对吧？可以这样
1.I got to go.
2.I got to hand off.