jīng / guò / duō / nián / hé / zuò / tā / yǐ / jīng / chéng / le / wǒ / de / zuǒ / bǎng / yòu / bì

经过多年合作，她已经成了我的左膀右臂。

After years of working together, she has become my trusted right-hand assistant.