“挣”表示通过劳动或努力获得金钱或报酬，通常用于工作或付出后得到回报。
“Zhèng” biǎoshì tōngguò láodòng huò nǔlì huòdé jīnqián huò bàochóu, tōngcháng yòng yú gōngzuò huò fùchū hòu dédào huíbào.
“Earn” means to obtain money or reward through labor or effort, usually used for getting returns after work or contribution.
在日常生活中，“挣”常用来描述人们通过工作或做事情来赚钱，比如爸爸妈妈上班挣钱，或者小朋友通过做家务挣零花钱。
Zài rìcháng shēnghuó zhōng, “zhèng” cháng yònglái miáoshù rénmen tōngguò gōngzuò huò zuò shìqíng lái zhuàn qián, bǐrú bàba māma shàngbān zhèng qián, huòzhě xiǎo péngyǒu tōngguò zuò jiāwù zhèng línghuā qián.
In daily life, “earn” is often used to describe people making money through work or doing things, such as parents earning money by working, or children earning pocket money by doing chores.
Both mean to gain money through work.
Earn is the opposite of spend.