改

wǒ bù xiǎng gǎi zhǔ yi

我不想改主意。

I don't want to change my mind.

gǎi huāng shān wéi shuǐ guǒ yuán

改荒山为水果园。

Transform barren hills into orchards.

tā zhǎng dà hòu gǎi míng le

他长大后改名了。

He changed his name when he grew up.

gǎi kǒu

改口

retract what has just been said

bǎ nǐ de cuò wù gǎi le

把你的错误改了。

Please correct your mistakes.

nǐ zuò yè li de pīn yīn cuò wù yào gǎi yī xià

你作业里的拼音错误要改一下。

You should correct spelling mistakes in your homework.

lǎo shī zài gǎi zuò yè

老师在改作业。

The teacher is correcting students' papers.

yī fu bù hé shì yào gǎi yī xià chǐ cùn

衣服不合适，要改一下尺寸。

If the coat doesn't fit you, you should change the size.

wén zhāng xiě wán yào zài gǎi yī xia

文章写完，要再改一下。

You should revise your article after finishing writing.

bǎ kù zi gǎi duǎn diǎn

把裤子改短点。

Alter the pants to make it shorter.