更多unascertained例句

1. To which of these classes the Loucheux belongs, has hitherto been unascertained.
2. A gum-resin derived from an unascertained umbelliferous plant.
3. This is the "plus x" of the formula, which, unascertained, gives us little light as to the result.
4. It were often better that he had an ascertained master, instead of an irresponsible and unascertained one.
5. But the city was entirely constructed by the Romans, though at what precise period is still unascertained.