关于英语论文写作的问题Define each of the following words after the patt

关于英语论文写作的问题
Define each of the following words after the pattern stated in the brackets
1.botanist--person plants (1)
2.ammeter--instrument electric current (2)
3.demography--study population growth and its structure (3)
4.theology--science religious beliefs and theories (4)
5.criminal psychology--the crime and the criminal (2)
好像是在讲definition的时候讲的