The date of the ship's arrival is uncertain.

船到的日期未定。

《新英汉大辞典》

His date of birth is uncertain (around 1489).

他的出生日期是不确定的(约1489)。

youdao

But specific rules and launch date of international board is uncertain.

但国际板的具体规则和推出时间尚未明确。

youdao

But specific rules and launch date of international board is uncertain.

但国际板的具体规则和推出时间尚未明确。

youdao