A flower blooms alone.

一花独放。

《新英汉大辞典》

My flower is ephemeral, and she has only four thorns to defend herself against the world. And I have left on my planet, all alone!

我的花生命是短暂的，她只有四根刺可以保护自己，抵御世界，我却将她独自留在我的星球上了！

youdao

Kurukulla mercifully received the flower offering by herself as a gesture of rewarding my efforts in doing the fire puja alone.

古鲁古里佛母很慈悲地亲自来接受此供花以表示赏识我独自修此火供的辛劳。

youdao

The eight absent flower children from Dimuchong village alone make a mockery of that claim.

ECONOMIST: China

In Prospect Park alone, at least 90 species of native bees flit from flower to flower among the park's sun-dappled golden rod, dandelions and dogwood.

WSJ: New Sweat Bee Generates Buzz

In London alone, Reynolds has led dozens of covert digs with hundreds of flower-empowered followers to transform derelict dirt on street corners, roadways and roundabouts into places of rediscovered horticultural beauty -- one of his favorite projects, Reynolds says, is a lavender field planted in a once-barren median on Westminster Bridge Road.

CNN: Guerrilla gardeners green their city on secret moonlit missions