sive后缀一般是形容词后缀，表示“…的”，如expensive
例句
1、
The new office block has become an expensive white elephant.
这座新办公大楼成了昂贵的摆设。
2、
Making the wrong decision could prove expensive.
错误的决策可能会付出昂贵的代价。
3、
The other one was much too expensive.
另一个太贵了。
sive后缀的意思
sive后缀一般是形容词后缀，加在动词后，比如express加上后缀就变成expressive意为表现的，意味深长的
