Stethoscopes
n. 听诊器( stethoscope的复数形式 )
🗣️ 情景例句
Don't lose your cool.
要沉住气。
He would direct the workman to use his plans.
他为了执行自己的计划，给员工下了指示。
Why are there three prices quoted for this part?
这种零件为什么有三种不同的报价？