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- We have three periods of chemistry a week. 我们一星期三节化学课。
- The scientist probed into the secrets of chemistry. 这位科学家探索了化学的种种奥秘。
- Chemistry was her favourite subject at school. 她上学时最喜欢化学。
- No one can cope with him in Chemistry. 在化学方面，谁也比不上他。
- Has undergone a religious conversion. 经历一次宗教信仰的转变。
- I am not good at organic chemistry. 我的有机化学学得不好。
- We will do a Chemistry experiment this Friday. 这个周五我们要做化学试验。
- He is an authority in the region of chemistry. 他是化学界的权威。
- A proposition obtained by conversion. 逆命题通过换位得到的命题
- I have only a rudimentary grasp of chemistry. 我只掌握了化学的初步知识。
- I have lost my interest in chemistry. 我对化学已不感兴趣。
- He was still devoted to the study of chemistry. 他仍专心致力於化学研究。
- Conversion to gas central heating will save you a lot of money. 改用煤气集中供暖将节省大笔开支。
- Physical chemistry is Greek to me. 我对物理化学一窍不通。
- The chemistry of petroleum and its derivatives. 石油化学石油及其复合物的化学
- The chemistry of stars and interstellar space. 天体化学关于星和星际空间的化学
- Conversion of your heating system from coal to gas will be costly. 你把暖气系统由烧煤改造成烧瓦斯会花好多钱。
- My son is studying physical chemistry but it's all Greek to me. 我儿子正研究物理化学，但我对此一窍不通。
- He laughed to conver his nervousness. 用笑掩饰。
