1 . ambiguous
484 address incomplete 地址不完整485 ambiguous 不明朗486 busy here 這里忙
2 . unclear
from the Delta side view , the situation remained unclear ., 從長三角這邊來看 , 形勢仍不明朗.
3 . Unusual uncertain
于伯南克指美國經濟正陷于異乎尋常的不明朗(unusual uncertain),加上未有預期般公布刺激經濟方案,盡管低息環境可望維持在一段較長時間,道指仍掉頭向下,并結束
4 . uncertainty remaining
nevertheless , with the uncertainty remaining with the overall economic ., 本港經濟情況仍然不明朗, 二零零九年下.