Daily Chinese Idiom Wordle Game
无独有偶 (wú dú yǒu ǒu)
It means that coincidences happen; not only one but a pair of similar things occur together.
Literal: not only one, has a pair
The two scientists independently made the same discovery on the same day—truly, no single occurrence without a pair.
Think about when two similar events happen unexpectedly at the same time.
One character means 'only', another means 'have'.