Correct

相差十万八千里

/ xiāng chà shí wàn bā qiān lǐ /
Strokes
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Collocation

1
不可能相差十万八千里
2
很可能相差十万八千里
3
真是相差十万八千里
4
两者相差十万八千里

Definition

相差十万八千里

Literally means:

differ by 18,000 Li

Actually means:

be a far cry from

It means that the difference in nature, level or degree is huge.

It is rarely used to refer to the difference in spatial distance. Exaggeration.

形容性质、水平、程度等的差异很大。

较少用来形容空间上的距离。有夸张的意味。

Example

Used as predicate or object. (作谓语、宾语)
1
Páizi
牌子
xiāngtóng
相同
de
jiàn
fu
衣服
  
,
shāngdiàn
大商店
xiǎo
shāngdiàn
商店
mài
de
jiàqian
价钱
yǒushí
有时
xiāngchà
相差
shíwànqiān
十万八千里
  
,
yàoshi
要是
dào
de
shāngdiàn
商店
mǎi
  
,
kěndìng
肯定
yào
duō
huā
yuānwangqián
冤枉钱
  

The same brand of clothes, big shops and small shops sell the price difference sometimes 108,000 miles, if you go to the big stores to buy, you must spend more money.

2
men
他们
liǎng
rén
de
yīng
英语
shuǐpíng
水平
chàbuduō
差不多
  
,
kǎoshì
考试
chéng
成绩
néng
可能
xiāngchà
相差
shíwànqiān
十万八千里
  

The two of them have similar levels of English, and the test scores can't be 108,000 miles apart.

3
xiǎng
理想
jiùshì
就是
xiǎng
理想
  
,
xiǎng
理想
shi
xiànshí
现实
  
,
yǒushí
有时
liǎngzhě
两者
xiāngchà
相差
shíwànqiān
十万八千里
  
juéde
觉得
ma
  
?

Ideal is ideal, ideal is not reality, sometimes the difference between the two 108,000 miles. Don't you think?