Other archaeologists have criticized those conclusions on the grounds that passenger pigeon bones would not be likely to be preserved.
其他考古学家批评了这些结论，因为旅鸽的骨头不太可能被保存下来。
2
A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some superior skills that could help the treatment of human diseases.
老鼠或鸽子可能并不是用来照顾病人的明智选择，但这些动物拥有更高级的技能，可以帮助治疗人类疾病。
3
It cannot solve all business problems, but it is notpigeon-holed to any one in particular, either.