lǎo / yuán / gōng / duì / xīn / xì / tǒng / rú / bì / shǐ / zhǐ / gōng / zuò / xiào / lǜ / dà / fú / tí / shēng

老员工对新系统如臂使指，工作效率大幅提升。

The veteran employees had perfect control of the new system, greatly improving work efficiency.