1、update 强调时间上的更新。2、upgrade 强调技术/等级上的更新。update的用法1、He was back in the office, updating the work schedule on the computer他已回到办公室,正在电脑上更新工作日程。2、She had heard the news-flas
affect英 [əˈfekt]美 [əˈfekt]例句:Athletes and scientists have long known that meal timing affects performance. However, far less has been known about how meal timing and exe