zuǒěrrù,yòuěrchū
ㄗㄨㄛˇ ㄦˇ ㄖㄨˋ , ㄧㄡˋ ㄦˇ ㄔㄨ
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 左耳入，右耳出 and it comes back until you know it.