1.hemi-, semi-：半
hemicycle n.半圆形；半圆形建筑
E.g. The inner container is stainless steel, hemicycle structure is easy to clean.
采用镜面不锈钢内胆，四角半圆弧易清洁。
semiautomatic adj.半自动的
E.g. It is illegal in some countries to hunt with a semiautomatic rifle.
在有些地方使用半自动步枪狩猎是违法的。
2.mono-,uni-：one单一
monologue n.独白
E.g. Morris ignored the question and continued his monologue.
莫里斯不理会这个问题，继续他的长篇大论。
uniform adj.统一的；均匀的
E.g. The rows of houses were uniform in appearance.
这一排排的房屋外表都是一样的。
3.ambi-, amphi-：两，周围
ambiguous adj.有两个意义的，暧昧的
E.g. In fact, your ambiguous words amount to a refusal.
实际上，你说的那些模棱两可的话等于是拒绝。
amphibianadj.两栖的
E.g. It is being actively pursued by amphibian specialists.
许多两栖类生物研究专家正积极的从事这项工作。
4.bi-, di-：二、双
biweekly adj.两周一次的
E.g. He used to see them at the biweekly meetings.
他以前总是在两周一次的会议上看到他们。
dioxide二氧化物
E.g. The proposed initiative would mandate a reduction of carbon dioxide of 40%.
倡议将强制规定把二氧化碳排放量降低40%。
5.tri-：三
triangle三角形
E.g. He swept a triangle with his finger.
他用手指在空中画了个三角形。
triple三倍的
E.g. The mine reportedly had an accident rate triple the national average.
据报道，该矿事故发生率是全国平均水平的3倍。
6.multi-, poly-：多
multiform adj.多样的
E.g. We hope for multiform cooperation with new and old clients both at home and abroad.
公司期盼与国内外新老客户进行多种形式的合作。
polygon多边形
E.g. Boundaries of the polygon may extend to infinity.
多角形的边界可以延伸到无穷远处。
