Ní / mǐ / zī / hào / jīng / guò / cháng / shí / jiān / wéi / hù / hòu / chóng / xīn / tóu / rù / le / xùn / liàn / rèn / wù尼米兹号经过长时间维护后重新投入了训练任务。The Nimitz resumed training missions after a lengthy maintenance period.