这些问题是历史遗留的，需要时间慢慢解决。

Zhèxiē wèntí shì lìshǐ yíliú de, xūyào shíjiān mànmàn jiějué.

These problems are left over from history and need time to be solved gradually.

这家公司合并后，一些管理上的遗留问题逐渐暴露出来。

Zhè jiā gōngsī hébìng hòu, yìxiē guǎnlǐ shàng de yíliú wèntí zhújiàn bàolù chūlái.

After the companies merged, some leftover management issues gradually came to light.