☆美国英语母语人士点评:Lesson is normally what you're studying IN class， and class is just used to talk about the actual course you're taking. Lesson通常是指你在课堂上学习的内容，class只是用来谈论你所上的实际课程。
To them，as to至于 all Christians，this is a holy神圣 place地方.考试真题:What's crucial至关重要的 is recognizing意识到 that sustainable 可以忍受的agriculture农业 is not just about sustainable可持续的 food production生产.
