下面这句话的语法结构和翻译，和句中that is to say 做什么成分？

Question

First, there are those words with which we become familiar in ordinary
coversation, which we learn, that is to say, from the members of our own family
and from our friends, and which we should know and use even if we could not read
or write.

Answer 1

首先，有那么一些词是我们在平时对话中熟悉起来的，也就是说，我们从家庭成员及朋友们那里学到的。即使我们不会读写，我们应该知道并且会用。

That is to say 是插入语，起进一步解释说明的作用。

这个句子主句是there are those words，其后有三个which引导的定语从句，定的是those words。

Answer 2

插入语。
插入语的特征是，其并非句子必不可少的成分，去掉的话，丝毫不影响句子原来的意思，通常在两端用逗号与句子本身区隔。追问

that is to say 是那部分的插入语？

追答

整个句子的插入语。因为这句话的主干就是there are those words，其后是三个修饰words的定语从句，前一个是限定性的，后两个是非限定性的。

追问

which we learn, that is to say, from the members of our own family
and from our friends,
是第二个定语从句的插入语吗？

追答

不是，应该是插在1和2、3之间的。

Answer 3

这句英文是错误的，正确的写法应该是：
i
would
love
you
if
you
didn't
say
that.
如果你不说，我会爱你的。
关键是，你输入的中文原句是什么，电子词典是很不可靠的。

Answer 4

that is to say, 在这里做状语，也就是说的意思。

Answer 5

that is to say 做什么成分?
that is to say 用在那里是个错误.

原句有错误, 且写得混乱. 可以改成:

First, there are many words that we learn in our daily life from members of our own families and friends and become familiar with them even before we can read and spell them.本回答被网友采纳