jǐhéjíshùzēngzhǎng
ㄐㄧˇ ㄏㄜˊ ㄐㄧˊ ㄕㄨˋ ㄗㄥ ㄓㄤˇ
Simplified 几何级数增长
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 幾何級數增長 and it comes back until you know it.