1·You can add and drop indexes; alter tables by dropping, renaming, or adding columns; and even drop down into SQL as necessary.
可以添加和删除索引；通过删除、改名或添加列来修改表；甚至在必要的时候借助于SQL。
2·Move any existing Linux directory or symlink out of the way by renaming it (if a directory) or simply deleting it (if a symlink). Then.
移去该处的任何linux目录或者符号连接，如果是目录就将其改名，如果是符号连接就只需删除它。
3·Renaming my brother was probably the kindest thing I ever did for him, because nobody expects much from someone called Doodle.
给我弟弟的这次改名很可能是我为他做过的最和蔼的一件事，因为没有人会对一个叫嘟嘟的人有多大期望。
4·One solution proposed for this lack of vision is that of renaming the subject to "informatics."
因此，有人推荐将这一学科改名为“信息科学”。
5·However, these four traps - conformity, competition, being lost in a group and renaming bad ACTS - are just the start.
然而，这四种陷阱——从众、竞争、迷失在群体中以及给不良行为改名——只是个开始。