49235 The volcano erupts at regular intervals. CK 35327 Buses are running at 20 minute intervals. CM 16550 You must practice it at regular intervals. Zifre 35036 I visited him at intervals during my stay in Paris. CM
49235 The volcano erupts at regular intervals. CK 35327 Buses are running at 20 minute intervals. CM 16550 You must practice it at regular intervals. Zifre 35036 I visited him at intervals during my stay in Paris. CM