I want to call you but my phone isn't working,so I'm writing to you.我想给你打电话,但我的手机坏了,所以我就给你写明信片。
1)work用来表示仪器设备的运行,这种情况下若用于否定结构,大多表示某一物件坏掉了。例如:
The clock isn't working now。现在钟停掉了。
2)write to 表示给某人写信,例如:
My friend Tom often write to me, now I'm writing to him.我的朋友汤姆经常给我写信,现在我都在给他写信呢。