Autechoscope
自检听诊器
🗣️ 情景例句
They concluded that the goods were of good quality and proved no problem.
他们断定货物质地优良，并证明没有任何问题。
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
Don't nag me!
别在我面前唠叨！