A standard one. Replacement during the first year if all rules for proper use have been followed.
有一个原则,如果在一年内符合各种使用规定,就可更换。
Generally speaking, newspapers follow the American way, but conference reports and schoolbooks use British spelling.
一般地说,报纸采用美国英语的拼法,但是会议报告和教科书都采用英国英语的拼法。