Mr Aldersey-Williams bemoans the decline of classroom chemistry, and the rise of a culture in which experiments performed by teachers must be timed to coincide with the length of the lesson.
奥尔德-威廉姆斯[color=#0000ff]抱怨化学教学的倾斜以及一种文化的[color=#0000ff]兴起。在这种文化中教师[color=#0000ff]做实验[color=#0000ff]的时间必须配合一节课的长度。
How to make use of the environmental protection education in the experiment teaching in, put in the chemistry educator in front of a deserve deep into study of lesson.
如何寓环境保护教育于实验教学之中，是摆在化学教育工作者面前的一个值得深入探讨的课题。
We have chemistry at half past eleven. We don't have science today In the afternoon, I have art at half past one and I have an English lesson at half past two. What about you, Betty?
十一点半我们上化学。今天下午我们没有自然科学。一点半我要上美术，两点半上英语。贝蒂，你们的课程是什么呢？
We have chemistry at half past eleven. We don't have science today In the afternoon, I have art at half past one and I have an English lesson at half past two. What about you, Betty?
十一点半我们上化学。今天下午我们没有自然科学。一点半我要上美术，两点半上英语。贝蒂，你们的课程是什么呢？
应用推荐