纳粹时期的征用致使所有权不明确。Ownership is not clear because of expropriations in the Nazi era.法律上不明确a lack of clarity in the law对于应该采取什么正确步骤，还是有些不明确。There is some confusion about what the correct procedure should be....
宫颈涂片检查能够帮上大忙。The cervical smear test is a lifesaver.在直接涂片上致病菌可能不明确.The etiologic agent may not be apparent on direct smear.应作穿刺液涂片染色检查.A smear of the fluid should be stained and examined....
He held a number of patents for his many innovations...他拥有多项发明的专利权。Innovations can not be achieved without breaking the confinements of the old economic system.经济体制不突破老框框怎么能创新呢?The engineer has many technical innovations...