Tā zài shuāijiāo bǐsài zhōng yīxiàzi jiù bǎ duìshǒu bāndǎo le.
He toppled his opponent in the wrestling match in one move.
Tips
usage
扳倒 can be physical (wrestling someone down) or figurative (bringing down a powerful person). The figurative use is very common in political and legal contexts.