gōng / sī / zài / tóu / zī / qián / yào / fǎn / fù / chóu / suàn / xiàng / mù / de / chéng / běn / hé / shōu / yì公司在投资前要反复筹算项目的成本和收益。The company must repeatedly calculate the costs and benefits of a project before investing.