事实上蚯蚓制肥是一个复杂的过程，而且学生们也很难完全理解动物，人类与环

事实上蚯蚓制肥是一个复杂的过程，而且学生们也很难完全理解动物，人类与环境三者之间的关系。但是本节课的重点并不要求学生完全理解这么复杂的问题

結果 (英文) 1:

In fact worm composting is a complex process, and students find it difficult to fully understand the animals, relationships between and among humans and the environment. But the focus of this lesson does not require students to fully understand such a complex question

結果 (英文) 2:

In fact earthworm composting is a complex process, but students are also difficult to fully understand the relationship between animals, humans and the environment between the three. But the focus of this lesson does not require students to fully understand such a complex problem

結果 (英文) 3:

In fact, earthworm fertilizer is a complex process, and the students are also very difficult to fully understand the relationship between animals, humans and the environment of the three. But the focus of this class does not require students to fully understand such a complex problem.