老旧的（形容词）

(adjective) Describing something that remains in use but is quite old and now functioning poorly.

EXAMPLE: In the tailor's tiny shop there was an antiquated sewing machine that he operated by rhythmically pumping his feet.

这位裁缝的小店里有一台老旧的缝纫机，他要通过有节奏地踩踏板来操作它。

in flux

处于动荡中

Describing something in a period of change; not yet permanent. (NOTE: do not confuse with the noun “influx” meaning the arrival of a large group of people or things)

EXAMPLE: Because our new president fired several important managers and has not replaced them, our whole company is currently in flux, and day-to-day operations are not going well.

由于新总裁炒掉了几位重要的经理，又没有找人填补空缺，我们整个公司目前处于动荡之中，日常运营不太正常。