harp on the same string

• v. 老调重弹

harp on the same string的用法和样例：

例句

用作动词 (v.)

1. That spokesman is striking up the same old tune.
   那个发言人又在老调重弹。
2. Now he's started on his hobbyhorse.
   现在他又开始老调重弹了。