all year round year要用复数吗

all year 不是all year round all year round year要用复数吗 all year round 和 all the year round 的区别 一年到头是all year round还是all the year round all year round 和 all the year round的区别 all year round还是all the year round Happy all year round ,merry all the year round 的 round 快 all the year round 等于 all the year around all year round、 all the year round和in a year 还有round 啊year的区别具体一点 all year round“造句,要简单一点的 all year round,all the year round,all year around,all the year around哪些正确?有什么区别? 用all the year round怎么造句? all year round的同义词是什么 is school all year round over there in还是 on all year round all year round=all year a long还是all year long Happy all year round ,merry-go-round怎么翻译较好