第一个译法（来自2010年高考一轮复习黄金学案中的原题答案）Something wrong must have happened if he did not come to attend the meeting as I told him.
第二个译法（来自有道词典翻译）：Yesterday he didn't follow my orders to attend the meeting,there is something happened.
建议用第一个,是现在是高三的学生吧?加油哦.
昨天他没有按照我吩咐的参加会议,一定有什么事发生了.请汉译英