yīdiǎnr
我信纸用完了，你先给我一点儿吧。
Wǒ xìnzhǐ yòng wán le, nǐ xiān gěi wǒ yīdiǎnr ba.
I've run out of letter paper, please give me a little first.
我以为有多大呢，原来只有这么一点儿
Wǒ yǐwéi yǒu duō dà ne, yuánlái zhǐyǒu zhème yīdiǎnr.
I thought it would be quite big, but it turns out it's only this little.
只有那么一点儿，够用吗？
Zhǐyǒu nàme yīdiǎnr, gòu yòng ma?
There's only that little bit, is it enough?