主线用英语怎么说？

主线

例句

• There is a consistent thread running through all these policies. 所有这些政策中贯穿着一条始终如一的主线。
• Where does this line tie in with the main circuit? 这条线在哪里跟主线路连接在一起 呢 ?
• Female initiation themes is the main subject in novels of Atwood. 女性成长主题是贯穿阿特伍德小说的一条主线.
• Humanity is a main line from beginning to end in Marxian philosophy. 人是马克思哲学的中心话题和核心内容,人学是贯穿马克思哲学思想的一条主线.
• The thread running through many of these proposals was the theme of individual power and opportunity... 贯穿这许多提案的主线是个人权力和机遇这一主题。
• Another thread running through this series is the role of doctors in the treatment of the mentally ill... 另一条贯穿这部连续剧的主线是医生在治疗精神病患者中起到的作用。