当心包充满液体时心音减弱.The heart sounds are muffled when the pericardial sac is distended with fluid.心音听诊被广泛用于评估病人的心功能.Cardiac auscultation is widely used to evaluate cardiac function in patients.听著你跳跃著的心音, 抚摸你柔细的身躯.Listen to the ...
他们慢慢地从舞台后方的左侧移至正中。They slowly moved from upstage left into the centre.为安全起见，千万别站在马的正后方。For safety'ssake, never stand directly behind a horse.她总是坐在司机驾驶位置的正后方。She always sits immediately behind the driver....