🧩 词语组成解析
percussive
[[pə'kʌsiv]]
a. 敲击的, 有强大冲击力的, 令人震惊的, 叩诊的
instrument
['ɪnstrəmənt]
n. 仪器;手段，工具;乐器;法律文件;
vt. 用仪器装备;为演奏谱曲;向…提交文书;
in内+stru=struct建立+ment表名词→内部结构→仪器；工具
🗣️ 情景例句
Congratulations again on your promotion. You deserve it.
再度恭喜你高升。你是得之无愧的。
How old do you have to be to vote in the national elections?
你要多大才能在大选中投票？
Meanwhile, his unit was lost and all records of him had been destroyed.
与此同时，他所在部队被击溃，他的所有档案材料全部毁于战火。