胳膊肘儿

yǒu rén bù xiǎo xīn qīng qīng pèng le yī xià tā de gē bo zhǒu r bǎ kā fēi nòng sǎ le

有人不小心轻轻碰了一下她的胳膊肘儿，把咖啡弄洒了。

Someone jogged her elbow, making her spill her coffee.