HSK 7-9
凑巧
còuqiǎo形
fortuitously; luckily; as chance has it
我凑巧在车站遇见老师。
Wǒ còu qiǎo zài chē zhàn yù jiàn lǎo shī.
I happened to meet the teacher at the station.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.