single cross

例句：

1. 1.The single mother has to juggle work and childcare.
   这位单身母亲得同时处理工作和照顾孩子。
2. 2. She is a solitary figure in the crowd.
   她在人群中是唯一一个孤独的身影。
3. 3. He likes to play solo piano pieces.
   他喜欢独奏钢琴曲。