tā / cān / jiā / tè / jì / tiào / sǎn / xùn / liàn / yǐ / jīng / sān / nián / le / jì / shù / fēi / cháng / xián / shú

他参加特技跳伞训练已经三年了，技术非常娴熟。

He has been training in skydiving for three years now and his skills are very refined.