zài / gōngsī / lǐ / yánfā / hé / xiāoshòu / bùmén / chún wáng chǐ hán / quēshǎo / rènhé / yīfāng / dōu / bùxíng

在公司里，研发和销售部门唇亡齿寒，缺少任何一方都不行。

In the company, the R&D and sales departments are interdependent; missing either one won't work.