laennec英'lenek美'lenekCOCA⁹⁷⁰⁴¹ 基本例句 赖乃克¹⁰⁰ Rene Laennec, French physician who invented the stethoscope in1819, died. 1819年发明听诊器的法国医生勒内·雷奈克逝世。 eeffee Later, Laennec built a hollow wooden cylinder, and named it the stethoscope. 后来，他做了个空心木圆筒，名之为「听诊器」 。 bomoo