他从未认真学习。
No matter how hard he studies, he never seems to be able to pass the exam.
不管他多么努力的学习，他似乎永远也考不及格。
He lived a hard life, but he never gave up his studies and went to college at last.
他生活很艰难，可是他从不放弃学业，考上了大学。
Unless he studies hard, he will never pass the examination.
他如果不努力学习，就永远不能考及格。(其实他就是不努力学习)。
Unless he studies hard, he will never pass the examination.
他如果不努力学习，就永远不能考及格。(其实他就是不努力学习)。
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