jīng / guò / cháng / qī / xùn / liàn / tā / shǐ / yòng / zhè / tào / shè / bèi / yǐ / jīng / cāo / zòng / zì / rú

经过长期训练，她使用这套设备已经操纵自如。

After extensive training, she can now operate this equipment effortlessly.