wǒ / zuó tiān / fā / yóu jiàn / shí / bǎi / le / gè / dà / wū lóng / bǎ / shōu jiàn rén / gǎo cuò / le

我昨天发邮件时摆了个大乌龙，把收件人搞错了。

When I sent the email yesterday, I made a big mistake and got the recipient wrong.