小意思。(Xiǎo yìsi.)It’s nothing; a small piece of cake; an easy job.

Explanation

“小意思”是口语用语。通常用于当别人表示感谢时的答语,意思是没什么,别客气。或者是认为某件事情做起来不难,很容易完成。
“小意思”is a spoken language which is often used as response to other’s appreciation or feel something is easy to do.

Words:

帮助bānɡzhù:help;
捐款juānkuǎn:donation.

Sentences

1.Jiǎ: Shífēn gǎnxiè nǐ de bāngzhù.
甲:十分感谢你的帮助!
A: Thank you so much for your help.

Yǐ: Búyòngxiè, xiǎoyìsi.
乙:不用谢。小意思。
B: Don't mention it. It's nothing.

2.Tā hěn yǒuqián,yí wàn yuán de juānkuǎn duì tā lái shuō shì xiǎo yìsi.
他很有钱,一万元的捐款对他来说是小意思。
A ten-thousand-dollar donation is an easy job for him.

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