2 You think it's "cool" to carry your backpacks and head out to school.But if you don't know exactly how to choose, load, lift and wear them-these allimportant accessories(配件) can be a pain in the back. Not to mention the neck, head and shoulders. Backpacks can influence your ...
a社会实践是不断发展的,我们的思想认识也应该不断前进,应勇于根据实践的要求进行创新。 The social practice is develops unceasingly, our ideological recognition also should go forward unceasingly, should dare according to the practice request to carry on the innovation.[translate] ...