key topics短语⁸⁴³²⁰⁺⁸ 基本例句 🌏主要议题；重要论题；主要话题 The realistic representation of lighting effect is one of the key topics in real- time computer graphics. 真实的光照效果模拟一直是计算机图形学中一个倍受瞩目的课题。 cnki Those key topics are on malignant invasion and metastasis. 肿瘤的侵袭和转移是研究的重点。 cnki