这不仅困难，而且是不可能的。
爬山过程中，我们不仅享受了大自然的美丽、放松身心，还学会了克服困难、互相帮助。
When climbing the hill, we not only got relaxed by enjoying the beauty of nature but also learned how to smooth away difficulties and help each other.
课上上网不仅会抢走老师的注意力，还会伤害到那些本来就对课堂内容理解困难的学生。
Surfing the Internet during class doesn't just steal focus from the educator; it also hurts students who're already struggling to grasp the material.
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