我们必须开始认真对待睡眠。
一旦我们有超过5000个人的签名，我们便计划将它寄给政府，希望更多的人会开始认真对待它。
Once we have over 5,000 signatures we are planning to send it to the government in the hope that more people will begin to take it seriously.
当他开始认真对待他的学习时，他一定可以取得好成绩。
When he settles down to his study, he is bound to get good grades.
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