'I'll be back soon,' she promised.

“我马上回来。”她答应说。

《牛津词典》

While my mother and I were picking out the gifts, my dad said, "I'll be back soon—I need to see something in the tool area."

当我和妈妈在挑选礼物时，爸爸说：“我很快就回来——我需要看看工具区有什么东西。”

youdao

Now I'm off to pack for the beach. I'll be back soon.

现在，我要为去海滩收拾东西了。一会儿再见。

youdao

All being well I'll be back in an England shirt as soon as possible.

CNN: Contrite Pietersen agrees England return

"I'll be working as hard as possible, as soon as my knee allows, to be back in time, " he told the Glasgow website.

BBC: Chris Cusiter & Al Kellock injury worries for Scots