parents listen to mathematical olympiad
...知 别和孩子抢座 The classroom notes and children don't stick the seat 家长听奥数 Parents listen to mathematical olympiad 听了半小时 妈妈睡着了 Listen to the mother fell asleep half an hour ..
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parents listen to mathematical olympiad
父母听奥数竞赛
以上为机器翻译结果，长、整句建议使用 人工翻译 。