To undercharge is to ask someone for less money than you should have. The shop, restaurant or worker makes a mistake — or sometimes decides to be kind — and the customer pays too little.

To undercharge is to ask someone for less money than you should have undercharge的意思是跟某人收的錢比應該收的少 The shop, restaurant or worker makes a mistake店家、餐廳或員工犯了個錯 or sometimes decides to be kind或有時候是故意好心 and the customer pays too little結果客人付得太少

You can undercharge a person ('she undercharged me'), or undercharge for a thing ('they undercharged for the repair'), and it is often used in the passive: 'I think I was undercharged.' Notice that the mistake belongs to the seller, not the buyer: the seller undercharges, the buyer is undercharged.

You can undercharge a person ('she undercharged me')你可以說undercharge a person，像she undercharged me or undercharge for a thing ('they undercharged for the repair')或undercharge for a thing，像they undercharged for the repair and it is often used in the passive而且常用被動式 'I think I was undercharged.'像I think I was undercharged Notice that the mistake belongs to the seller, not the buyer要注意犯錯的是賣方，不是買方 the seller undercharges, the buyer is undercharged賣方undercharges，買方is undercharged

The word is neutral in tone, not an accusation — it usually describes an honest slip at the till, and English speakers often use it to admit their own error politely: 'Sorry, I undercharged you yesterday.' It also has a wider business use, where a company undercharges for its work meaning it sets its prices too low to make a profit — this is about pricing policy, not a one-off mistake.

The word is neutral in tone, not an accusation這個字語氣中性，不是在指控 it usually describes an honest slip at the till它通常描述的是結帳時無心的小失誤 and English speakers often use it to admit their own error politely英文使用者也常用它有禮貌地承認自己的錯 'Sorry, I undercharged you yesterday.'像Sorry, I undercharged you yesterday It also has a wider business use它還有更廣的商業用法 where a company undercharges for its work指一家公司為自己的服務undercharges meaning it sets its prices too low to make a profit意思是它把價格訂得太低、賺不到錢 this is about pricing policy, not a one-off mistake這是定價策略的問題，不是一次性的失誤

The opposite is 'overcharge', which is much more common, partly because people complain more loudly about paying too much. There is a separate, rarer technical use about putting too little electricity into a battery or too little explosive into a hole, but you will meet those only in specialist writing. As a noun, 'an undercharge' means the amount that was missed.

The opposite is 'overcharge'相反詞是overcharge which is much more common這個字常見得多 partly because people complain more loudly about paying too much部分是因為人們對多付錢這件事抱怨得比較大聲 There is a separate, rarer technical use還有一個比較少見的專門用法 about putting too little electricity into a battery指電池充電不足 or too little explosive into a hole或洞裡放的炸藥不夠 but you will meet those only in specialist writing但這些你只會在專業文章裡遇到 As a noun, 'an undercharge'當名詞時，an undercharge means the amount that was missed指的是少收掉的那筆金額