shuāngzhōuqíxìng
ㄕㄨㄤ ㄓㄡ ㄑㄧˊ ㄒㄧㄥˋ
Simplified 双周期性
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 雙週期性 and it comes back until you know it.