they are looking at some boats on the river是他们正在看河面上的一些船
问题描述：
they are looking at some boats on the river是他们正在看河面上的一些船
they are looking at some boats on the river的意思是他们正在看河面上的一些船,那么想问一下,如果说他们正在桥上看河面上的那些船应该怎么说呢,
答
they are looking at some boats on the river from the bridge.
或者说
Standing on the bridge,they are looking at some boats on the river.