请问下面两句话的语言现象是一样的么？1 once published , the book became popular.2 seen from the moon, the earth looks like a blue ball.
參考答案:第一句是once引导的让步状语从句，前半句是个省略句，完整是“once the book is published”
第二句前半句也是个省略句，完整是“the earth is seen from the moon”
请问下面两句话的语言现象是一样的么？1 once published , the book became popular.2 seen from the moon, the earth looks like a blue ball.
參考答案:第一句是once引导的让步状语从句，前半句是个省略句，完整是“once the book is published”
第二句前半句也是个省略句，完整是“the earth is seen from the moon”