昨日

liǎng jiā gōng sī hé bìng de jiàn yì yǐ jīng yú zuó rì tóu piào tōng guò

两家公司合并的建议已经于昨日投票通过。

A proposal to merge the two companies was voted through yesterday.

gǔ piào zuó rì zāo yù zhòng cuò píng jūn xià diē le

股票昨日遭遇重挫，平均下跌了10%。

Shares had a bumpy ride yesterday, falling by an average of 10%.