给定一组英文句子，将它们翻译成中文。
He had a smile on his face as he ran to his mom. She was waiting with open arms. 
             I can't believe you're leaving, I'm going to miss you so much.
他跑向妈妈时脸上露出了微笑，她张开双臂等待着他。
我不敢相信你要离开了，我会非常想念你。