CNN News:新冠疫情致美国学校全面停课

School buildings have been closed in all 50 American states and five American territories though many schools are still in session online. In at least 45 states plus the District of Columbia, students won't be returning to campus at all for the rest of this academic year.
That might wind up being the case across the entire country though a few states may give schools the option of reopening before summer break.

Students, teachers, administrators and parents have made sacrifices to keep the learning going. They've missed out on plays, presentations, proms, graduations, sports, science fairs, book fairs, all sorts of trips and competitions. Adding to this challenge is the summer learning loss also known as the summer setback or the summer slide. It's a time when students forget some of what they've learned during the school year and it's expected to be worse because of coronavirus shutdowns.