A standard one. Replacement during the first year if all rules for proper use have been followed.
有一個原則,如果在一年內符合各種使用規定,就可更換。
But, in contrast, it is only in modern times that Galileo has become a problem child for historians of science.
但是相比之下,只是在現代對于科學史家來說,伽利略才變成一個新的難題。