Vibrograph
n. 振动计\\n[电] 振动管
🗣️ 情景例句
Keep your eyes on the road.
专心开车。
How many provinces do you have?
你们有多少个区？
In 1928 some porpoises were photographer working like beavers to push ashore a waterlogged mattress.
1928年，有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景。