cross
~ (with sb) (about sth) (infml ) rather angry 生气的; 恼怒的: I was cross with him for being late. 他迟到了, 我很生气. * What are you so cross about? 你为什麽发那麽大的火啊? * She gave me a cross look. 她瞪了我一眼.
[attrib 作定语] (of winds) contrary; opposed （指风）逆的, 反向的: Strong cross breezes make it difficult for boats to leave harbour. 逆风很强刮得船难以离港. Cf 参看 cross-wind. > crossly adv. crossness n [U].
以上是牛津词典的解释。
be cross about sth 对..感到生气。
我对迟到（这件事情）感到很生气。
或者说，因为晚了，我发飙了。