water drum
noun
1
- a West African instrument played by striking a bowl or gourd floating upside down in a pail of water（通过敲打倒扣浮在一桶水中的碗或瓢来演奏的西非的）水鼓。
2
- an American Indian drum partly filled with water to adjust the pitch and timbre水鼓（美洲印第安人的部分灌水以调节音调和音色的鼓）。