Echometer
听诊器
🗣️ 情景例句
OK. Keep those knees up.
好 ，膝盖抬高。
When did this happen?
这件事情什么时候发生的？
They were taking a badly damaged boat from the Virgin Islands to Miami to have it repaired.
他们驾着一条严重损坏的小船从维尔京群岛阿密修理。