They produced some fairly conclusive evidence.他们提供了一些相当确凿的证据.Such a conclusive evidence is hard to be explained away.如此确凿的证据是很难巧辩的.It's no use denying it ; the evidence is conclusive.证据确凿,不容狡赖.Research on the matter...
I wouldn't call it a burden; I call it a responsibility.我不觉得这是负担；我觉得它是一种责任。He staggered underneath a burden.他在重负下摇摇晃晃。A coward considers difficulties as a heavy burden on his back,but a valiant fighter turns difficu...
Usefulness includes the fact the negatives have been calibrated.所谓有用,是指在底片上要有标度.The theory is of limited usefulness.这个理论用途有限。The report is of potential usefulness to the government.这个报告可能对政府有用。There are doubts about the ...