My mother had to go through gall-stone surgery in Finland, where she was spending her holiday.

go 的基本意思是"去"，在这里与 through 搭配使用。 through 的意思是"通过、穿过"，在这里表示经历某个过程或阶段。 go through 这个短语动词表示"经历、经受"某种困难或不愉快的事情。