11. approximate a. 大概的,大约 v. 近似
He spent approximate two hours searching the photo.
他用了大约两小时来寻找这张照片.
Production costs approximate to $100,000 .
生产成本接近十万美元。
12. arbitrary a. 随意的,武断的
My choice was quite arbitrary.
我的选择相当随意。
This is an arbitrary decision.
这是个武断的决定。
13.architect n. 建筑师
The author of the guidebook is an architect by profession.
该旅行指南的作者任职建筑师。
14. architecture n. 建筑学
He obtained a diploma in architecture.
他获得了建筑学的学位证书。
15. biology n. 生物学
He specializes biology.
他主修生物学。
16. geography n. 地理(学)
How's the new geography teacher?
新的地理老师怎么样?
17. geology n. 地质学
Mineralogy is a brand of the great earth science geology.
矿物学是大地科学地质学的一个分支。
18. geometry n. 几何(学)
I feel that geometry is a difficult subject.
我认为几何是一门难学的课程。
19. arithmetic n. 算术
I'm good at history but not so hot at arithmetic.
我的历史成绩不错,但算术不太好。
20. algebra n. 代数
The boy can't figure out the algebra problems.
这个男孩做不出这道代数题。