提示：⒈离开时将所有的电器关闭；
⒉夏天和冬天使用空调分别调高或调低几度；
⒊号召大家一起努力节约能源，保护好环境。
要求：可适当发挥；60词左右；开头已给出，不计入总词数。
参考词汇：electrical appliances，air conditioner，degree, natural environment
How to save energy
Dear friends, we can't imagine what life will be like without electricity today. But how to save energy is a problem. We can do like these: …
