他跑得如此快以致我赶不上他的翻译：He ran so fast that I can't keep up with him 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

He runs so fast that I can not keep him

He ran so fast that I can't keep up with him

So that he runs quickly I not to be able to catch up with him so

He ran so fast that I can't keep up with his

He ran so fast that I can't keep up with him