I wonder if you could point me in the right direction for the bus station.
请问您能指点我到公共汽车站往哪个方向走吗？
I wonder if you can help me.
不知您是否能帮我的忙？
I wonder if I should wear a coat or not.
我不知道该不该穿外套。
I wonder he didn't hurt himself jumping over that wall.
我纳闷他怎么从那墙上跳过去竟没摔伤自己。
I wonder who that letter was from.
我不知道是谁来的信。