屈指

qū zhǐ yī suàn wǒ lí jiā yǐ jīng shí wǔ nián le

屈指一算，我离家已经十五年了。

You can count. I've been away from home for 15 years.

qū zhǐ yǐ jīng shí nián la

屈指已经十年啦。

Come to think of it. Ten years have already passed.

qū zhǐ yī shǔ

屈指一数

count on one's fingers

qū zhǐ suàn lai

屈指算来

reckon on one's fingers

tā zuò wéi dǎng lǐng xiù de rì zi yǐ qū zhǐ kě shù le

他作为党领袖的日子已屈指可数了。

His days as leader of the party are numbered.