天梯梦

1.你所要做的就是按下这个按钮然后等待。
all you have to do is to press this button
and keep waiting

2.你只要在这里签字就行了。
all you have to do is to sign here

3.他们答应我只要我说出真相就可以走了。
they agree that all have to do is to tell
the truth before i leave