across the world , all over the world , around the world都有全世界的意思，做句子时可以替换吗？

Question

它们之间有什么区别吗？

Answer 1

all around the world
= all over the world
= throughout the world
= everywhere in the world

复数名词 + across the world 与上述同义.
而单数名词 + across the world 则有"穿越"之意,

around the world 或 all over the world , 会比across the world 更为普遍~

Answer 2

across the world 也有横跨世界的意思
all over the world 是全世界 做副词
around the world 还有环游世界的意思

要是做全世界来讲的话 可以互换的