Subject + 扩充 + Object
扩充 (kuòchōng) is a verb meaning "to expand," "to enlarge," or "to augment." It is used when increasing the size, scope, or capacity of something, such as a team, collection, or system, and implies adding to what already exists.
公司计划明年扩充研发团队。
Gōngsī jìhuà míngnián kuòchōng yánfā tuánduì.
The company plans to expand the R&D team next year.
图书馆最近扩充了不少新书。
Túshūguǎn zuìjìn kuòchōng le bùshǎo xīn shū.
The library has recently expanded its collection with quite a few new books.
我们需要扩充服务器的存储容量。
Wǒmen xūyào kuòchōng fúwùqì de cúnchú róngliàng.
We need to expand the storage capacity of the server.