一个个

dà jiā bù yào yī qǐ jiǎng huà yī gè gè shuō

大家不要一起讲话，一个个说。

Don't talk all at once. Speak one by one.

wǒ de péng you yī gè gè dōu jié hūn le

我的朋友一个个都结婚了。

Each of my friend got married.

tā bǎ hé zi yī gè gè de luò qǐ lai

他把盒子一个个地摞起来。

He piled the boxes one on top of the other.