fàngshèxìngshuāibiàn
ㄈㄤˋ ㄕㄜˋ ㄒㄧㄥˋ ㄕㄨㄞ ㄅㄧㄢˋ
Simplified 放射性衰变
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 放射性衰變 and it comes back until you know it.