Rataplan
n. 敲鼓声\\nv. (使)发咚咚声
🗣️ 情景例句
Good-bye, Mr. Carlson. Thanks.
再见， Carlson先生。谢谢。
Still waters run deep.
大智若愚。静水流深。
Our knowledge of the universe is growing all the time.
我们对宇宙的认识一真在增长。