我刚刚到了。
Wǒ gānggāng dào le.
I just arrived.
他刚刚走了。
Tā gānggāng zǒu le.
He just left.
他刚刚及格。
Tā gānggāng jígé.
He barely passed.
这件衣服刚刚好。
Zhè jiàn yīfú gānggāng hǎo.
This clothes fits just right.