I wonder if you could point me in the right direction for the bus station.
請問您能指點我到公共汽車站往哪個方向走嗎？
I wonder if you can help me.
不知您是否能幫我的忙？
I wonder if I should wear a coat or not.
我不知道該不該穿外套。
I wonder he didn't hurt himself jumping over that wall.
我納悶他怎么從那墻上跳過去竟沒摔傷自己。
I wonder who that letter was from.
我不知道是誰來的信。