他不知道英文

不知道英文是：don't know.

1、don't

英 [dəʊnt] 美 [dont]

n.不要，禁忌；莫；别；甭

2、know

英 [nəʊ]  美 [no]

vt. 知道；认识；懂得

vi. 了解；熟悉；确信

过去式 knew 过去分词 known 现在分词 knowing

例句：

1、I don't know why such new gifted people have sprung up in my life.

我不知道怎么回事，在我的周围一下子涌现了那么多有才华的新人。

2、No one could know why he did like that.

没有人知道他这样做的缘故。

相关短语：

know how 秘诀；专门技术

don't know 我想不明白

know about 了解，知道……的情况；知道关于

don't you know [口语][用作插入语]你也知道；你是知道的，不是吗?

know as 称为

know what it is 知道是怎么回事，深知其中滋味 , 经历，遭受过

get to know 了解；认识

as we know 众所周知

in the know 知情的；消息灵通的

He doesn't know who he will borrow from

I have no idea 或者 I don't know

他不知道怎样照顾他的电子狗。这句话翻译成英文之后，它的表达就是：He doesn't know how to take care of his electronic dog.

他不知道向谁借英文：He doesn't know whom to borrowHe had no money, nor did he know anyone he could borrow from, either. 他没有钱, 也不知道能够向谁借钱.

不知道怎样照顾他的电子狗。这句话的翻译是：Doesn’t know how to take care of his electric dog