Is it difficult being a single mother?
当单身母亲难吗?
"I worried about being a single father," Holt says.
“我曾经对成为一名单身父亲深感担心,”Holt说。
But a char we've seen, a character being a single character.
正如我们看到的,一个字符就是一个单独的字符。
We're indeed having cross border wars. The idea of there being a single tax which is imposed across the world is simply inconceivable."
VOA: standard.2010.02.18
During development of the embryo it goes from being a single cell, the fertilized egg, to being a multi-cellular organism with billions of cells in it.
胚胎的发育,始于一个单一细胞,即受精卵,直到形成一个以十亿计数量的细胞构成的,多细胞有机体
But a char we've seen, a character being a single character.
正如我们看到的,一个字符就是一个单独的字符。
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