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- The base of a cliff; the base of a lamp. 悬崖脚；灯的底座
- A small corm arising at the base of a larger corm. 大球茎基部生出的小球茎。
- Feet The base of a piece of metal type. 金属字粒的底部。
- the base of a triangle, pyramid, etc 三角形的底边、 角锥体的底面等.
- The base of a triangle,pyramid,etc 三角形的底边、角锥体的底面等.
- The angles of a triangle total 180. 三角形的三角之和等于180°。
- The basis of a good marriage is trust. 美满婚姻的基础是信赖。
- The basis of a democratic state is liberty. 民主城邦的基础是自由权。
- I hike to the base of a waterfall. 需要长途跋涉才能来到冰瀑的底端。
- The cave is located at the base of a small cliff. 洞穴位于小悬崖的底部。
- A hill near the base of a mountain or mountain range. 山麓小丘靠近山基或山脉的小山。
- The side of a triangle subtends the opposite angle. 三角形的边对着对角
- The area of a triangle is equal to half the product of the base and the perpendicular height. 三角形的面积等于二分之一底乘高。
- Families are at the base of a socio-economic pyramid. 家庭是社会经济金字塔的基础。
- The sea washes the base of the cliffs. 海水拍打著悬崖的底部。
- Lexicons are the basis of a language and take the central position. 摘要词汇在语言中居中心地位，是语言基础的基础。
- The horizontal member at the base of a window opening. 窗沿，窗台窗户开口底部的横的部分。
- With small blisters or pustules, often at the base of a hair. 疱状突起的 Pustulose 通常在毛的基部小的疱疹状突起。
- Line AB is the base of the triangle ABC. ab线是三角形abC的底边。
- The distance from the base of something to the top. 高，高度某种物体从基部到顶部的距离
