This is a Progressive Web App (PWA) developed by 峰. If you think you recognize his avatar and want to verify, just ping him in person (WhatsApp, WeChat, whatever.) If you are in doubt with what is presented here so far, quit read along and quit this page.
How it works?
One time set up
Open this current page in Chrome Canary for Android
A bar should have popped up at the bottom of the page. Tap it and add it to your home sceen.
IF you don't see the bar, tap the top right 3-dot menu > "Add to Home screen" to proceed.
To use it
After installed (added), in any Android app where you can select some text, select some, the menu options (COPY, SHARE, SELECT ALL, etc) would appear, tap SHARE. Then you will find this PWA in the list. Select it, then you will be directed to the search page of the select text by Forvo.