percussion
UK/pә:'kʌʃәn/US
IELTSTOEFLGREC2
释义
n.
Musical instruments played by striking or shaking, such as drums and cymbals; the section of an orchestra that plays them
打击乐器；（管弦乐队的）打击乐声部
n.
The act of striking one thing against another; (medicine) tapping the body to judge the sound inside
敲击；撞击；（医学）叩诊
词根拆分
词根派生per-（穿透）+ cuss（来自 quatere，击打）+ -ion（动作）= 彻底敲击的行为。鼓、镲、铃只有被敲才发声，于是整类被敲击的乐器统称 percussion。这是词根最字面的幸存者——它至今就是「敲」。
词根 cuss 还连着 6 个词使用指南
通常不可数，尽管它涵盖多种乐器："the percussion is loud"、"plays percussion"。在医学中，percussion 是一种诊断手法——敲叩胸部或腹部、听其回响（叩诊）。
例句
- 1.
He plays percussion in the school orchestra.
他在学校管弦乐队里演奏打击乐。
- 2.
The song opens with heavy drums and other percussion.
这首歌以强劲的鼓声和其他打击乐开场。
- 3.
The doctor used percussion to check the patient's lungs.
医生用叩诊来检查病人的肺部。