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。
On turning eagerly to the text, one learns that the lady was a typist who found the sound of office typewriters worried her more and more until eventually she had to go into a mental hospital.
当人们急切地看完正文后,便知道这位女子是个打字员,办公室打字机的声音使她越来越烦恼,最终住进了精神病医院。