There are some unusual things in the world.(否顶句)（2种）

There are some unusual things in the world.(否顶句)（2种）
There are some unusual things in the world.(否顶句)（2种）

There are some unusual things in the world.(否顶句)（2种）
There are not some unusual things in the world.
There are some usual things in the world

there are seldom unusual things in the world
there is no unusual things in the world

There are no ‘’‘’‘’下面照抄就是了
some 否定no
something否定nothing
someone---no one
somewhere---nowhere