尚未确定

The date of his departure is uncertain.

他离开的日期确定。

The date's not fixed yet.

日期确定。

The Bisu people of Lancang have been identified as the Lahu people in 1990.However, the Bisu people of Menghai have not been identified its ethnic genera yet.

澜沧等的毕苏人经过识别，已于1990年归入拉祜，勐海的毕苏人确定属。

Mussa Aboud Jumbe, Zanzibar's director of fisheries, went on state radio to warn the public against eating the dolphin meat, saying the cause of death had not been determined.

当业部门的负责人在广播中，告诫人们不要食用死亡海豚的肉，因为死亡原因确定。