英文: His previous attempt was successful.
中文: 他以前的尝试成功了。英文: No previous experience is necessary.
中文: 学生不需要有相关经验。英文: They have no previous convictions.
中文: 他们没有前科。英文: Who was the previous owner?
中文: 谁是以前的属有人?英文: Previous Attempts: Between 26% and 33% of adolescent suicide victims have made a previous suicide attempt.
中文: 自杀企图︰26%~33%的自杀罹难青少年之前都曾有过自杀的企图。