1、A UN official said he thought it was an open question whether sanctions would do any good.
一位聯(lián)合國(guó)官員表示，他認(rèn)為對(duì)于制裁是否能夠起到作用這個(gè)問(wèn)題，尚無(wú)定論。

2、An Open Question Concerning Whitney Maps on Hyperspaces
關(guān)于超空間上Whitney映射的一個(gè)問(wèn)題

3、It's an open question at this point whether Guyana can stick to this strategy.
現(xiàn)在的問(wèn)題是圭亞那是否會(huì)一直堅(jiān)持這個(gè)策略。

an open question翻譯