Whether the current spirit of optimism and co-operation can be sustained throughout the tiger year is, however, far from certain.
尽管如此，是否目前的乐观和合作的精神能贯穿整个虎年还很难确定。
2
Environmental experts agree that the current situation cannot be sustained.
环保专家认为当前的形式已无法支撑。
3
If the current rate of seagrass loss is sustained or continues to accelerate, the ecological losses will also increase, causing even greater ill-afforded economic losses, " said the study.