例如:astomhappenedacrosheriverinanothercountry.2)如果要指代事先安排好或準備好的事情或活動，一般用takeplace,happentomet:萍水相逢5,happentobe:恰好是；恰好是2.asithappens:發生了；偶然發生,happenon:偶然相遇或發現4,happen1。1、appear和happen的具體差別和用法?happen1。happentobe:恰好是；恰好是2.asithappens:發生了；偶然發生。happenon:偶然相遇或發現...