보온병의 사용 기간이 오래되었는데 물때를 어떻게 지우나요?

Please demonstrate how to say :

보온병의 사용 기간이 오래되었는데 물때를 어떻게 지우나요?

You have 9 seconds to record. Once you are done recording, click the Stop button.

0:00

Click the red button and your browser will ask for permission to use your microphone. Allow it and start recording.

Say it as loud and as clear as you can! Please only say the given word/phrase once, and do not say anything else or explain anything.

You may then listen to your recording again. Submit it if you are happy with it.

Click the red button and your browser will ask for permission to use your microphone. Allow it and start recording.

Say it as loud and as clear as you can! Please only say the given word/phrase once, and do not say anything else or explain anything.

You may then listen to your recording again. Submit it if you are happy with it.