she is the thinnest student in her class可以等于she is the thinn
she is the thinnest student in her class可以等于she is the thinner than the others in her class么?
那如果句型转换
只有两个空呢?
she is the thinnest student in her classs = she is thinner than the other sutdents in her class
这个可以为什么那个就不可以?
前面打错了、sorry