adj.不清楚的;不明白的;含糊不清;
例句:
So it is unclear whether it can operate at a profit or not.
因此,FMG是否还能保持盈利尚不清楚.
Your diagrams are unclear.
你的图表不清楚。
Just what the soldier was doing in Bireij is unclear...
就连那个士兵在比雷杰干什么都不清楚。