坑：sign or send？

I tried to say "sign" which was misunderstood as "send" two days ago. 
Today, I just used the app "messages” to test my pronunciation of "sign" again.

I was misunderstood as "send", "Sam", even "三”！ Finally,  my pronunciation of "sign" is correct. 
Do you want to have a try to test your pronunciation of "sign"? 
Turn on the message app,  please click on the "microphone"icon on the bottom right and give it a try.

Are you able to pronounce “sign” correctly?