特别注意

As + adj.原级 + as ... 和...一样...
Not so/as + adj.原级 + as ... 不如...那么...
try doing sth. 尝试做某事
try to do sth. 努力做某事\

How to do sth./it
注：sth./it 与前面的How对应
What to do sth.