作为到达讲首先，没有arrive to 这种说法。只有arrive in / arrive at
arrive in 到达某地（其中这个地方是指大地方）如：I will arrive in USA
arrive at 到达某地（其中这个地方是指小地方）如：I will arrive at the bus station.
reach是及物动词，后面不加to。
get to=reach。
when will you reach(或arrive at或get to) Beijing?你什么时候到北京?
另外reach to 伸手够到
如The railway line will soon reach to our town. 铁路不久就要延伸到我们镇了.