In Chinese, "比" comparison sentences can be modified to show HOW MUCH of a difference exists. Use 一点儿/一些 for small differences and 得多/多了 for large differences. CRITICAL: To negate a "比" sentence, do NOT add 不 before 比. Instead, switch to the "没有" structure: A + 没有 + B + (这么/那么) + Adj. This is one of the most common errors learners make.
微弱差距 Slight
比 + Adj + 一点儿/一些
差别不大 · small difference
显著差距 Big
比 + Adj + 得多/多了
差别很大 · large difference
微弱差距 · Slight Difference: A + 比 + B + Adj + 一点儿 / 一些
Use when the difference is small or moderate. 一点儿 is slightly more colloquial; 一些 is slightly more formal.
Example: 他比我高一点儿。= He is a little taller than me.
显著差距 · Big Difference: A + 比 + B + Adj + 得多 / 多了
Use when the difference is large or significant. 得多 is slightly more formal; 多了 is more colloquial.
Example: 数学比历史难得多。= Math is much harder than history.
对比项目
微弱差距（一点儿/一些）
显著差距（得多/多了）
程度
差别不大 (small difference)
差别很大 (large difference)
结构
A + 比 + B + Adj + 一点儿/一些
A + 比 + B + Adj + 得多/多了
例句A
他比我高一点儿 He is a little taller than me
数学比历史难得多 Math is much harder than history
例句B
新车比旧车轻一些 The new bike is a bit lighter
新房子比旧房子好 The new apt is much better
语气
客观、中性 (neutral, objective)
强调、感叹 (emphatic, exclamatory)
否定转化 · Negation: A + 没有 + B + (这么/那么) + Adj
⚠️ NEVER use 不比 to negate a 比 sentence! Switch to 没有 structure.
Example: 他的个子没有我那么高。= His height is not as tall as mine.
⚠️ Error Alert · 常见错误：比字句的否定形式
❌
他不比我高一点儿。
错误！比字句的否定不是在比前加不。这个句子语法不正确。
✅
他没有我那么高。/ 他没有我高。
Correct! To negate a 比 sentence, use: A + 没有 + B + (那么/这么) + Adj.
❌
新房子不比旧房子好多了。
错误！不能用不比来否定比字句，这是最常见的错误之一。
✅
新房子没有旧房子那么好。
Correct! Switch to 没有 structure: 新房子没有旧房子那么好 = The new apartment is not as good as the old one.
❌
数学不比历史难得多。
错误！否定比字句时，必须改用没有句型，不能直接在比前加不。
✅
数学没有历史那么难。
Correct! 数学没有历史那么难 = Math is not as hard as history. Structure: A + 没有 + B + 那么 + Adj.
修订例句 · Revised Examples
1他比我高一点儿，但跟运动员比，没有他们那么高。
tā bǐ wǒ gāo yì diǎn ér ， dàn gēn yùn dòng yuán bǐ ， méi yǒu tā men nà me gāo 。
He is a little taller than me, but compared to athletes, he is not as tall as them.
Mathematics is much more difficult than history, and I have to spend more time reviewing before each exam.
4新房子环境比旧房子好多了，附近有公园和超市，买水果很方便。
xīn fáng zi huán jìng bǐ jiù fáng zi hǎo duō le ， fù jìn yǒu gōng yuán hé chāo shì ， mǎi shuǐ guǒ hěn fāng biàn 。
The environment of the new house is much better than the old one. There are parks and supermarkets nearby, and it is very convenient to buy fruits.
5今天的作业比昨天的作业少一些。
jīn tiān de zuò yè bǐ zuó tiān de zuò yè shǎo yì xiē 。
Today’s homework is a little less than yesterday’s homework.
Grammar Point 2 · 语法点二
二
概数的表达——相邻数字连用
Approximate Numbers — Using Adjacent Digits Together
相邻数字连用 = 大概的数量（approximate quantity）
一两 yī liǎng ≈ one or two 两三 liǎng sān ≈ two or three 三四 sān sì ≈ three or four 四五 sì wǔ ≈ four or five 五六 wǔ liù ≈ five or six 七八 qī bā ≈ seven or eight
⚠️ 注意：用"两"不用"二"！ 两三个 ✅ 二三个 ❌（口语中一般不说）
In Chinese, two adjacent single-digit numbers placed together express an approximate quantity — similar to "two or three" or "four or five" in English. This is very common in everyday speech. IMPORTANT: When the number 2 appears in an approximate number expression, always use 两 (liǎng), NOT 二 (èr). So say 两三个 (two or three), NOT 二三个.
一两
yī liǎng
one or two
两三
liǎng sān
two or three
三四
sān sì
three or four
四五
sì wǔ
four or five
五六
wǔ liù
five or six
七八
qī bā
seven or eight
⚠️ 两 vs 二 in Approximate Numbers:
When 2 is part of an approximate number pair, ALWAYS use 两 (liǎng), not 二 (èr).
✅ 两三个 (two or three) · 一两天 (one or two days) · 两三处 (two or three places)
❌ 二三个 · 一二天 · 二三处 (these sound unnatural in spoken Chinese)
修订例句 · Revised Examples
1中介带我看了两三个小区，对比后才定下这套环境好的房子。
zhōng jiè dài wǒ kàn le liǎng sān gè xiǎo qū ， duì bǐ hòu cái dìng xià zhè tào huán jìng hǎo de fáng zi 。
The agent showed me two or three communities, and after comparing them, I decided on this house with a good environment.
2我骑着旧车跑了四五家车店，对比价格后挑了一辆新车。
wǒ qí zhe jiù chē pǎo le sì wǔ jiā chē diàn ， duì bǐ jià gé hòu tiāo le yí liàng xīn chē 。
I rode my old car to four or five car shops, compared prices and chose a new car.