Many of the best indicator species are small and hard to find.

许多最好的指示物种都很小而且很难找到。

The endless disputes whether or not some fifty species of British brambles are good species will cease.

关于大约 50 种英国荆棘是否是好物种的无休止的争论将停止。

J) Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model.

J) Farrant 和复活行业的其他人去年聚在一起讨论了用作实验室模型的最佳复活植物种类。