The frequent occurrence and serious consequence of school safety accidents make the school safety problem become the focus of society concernment.
学校安全事故的频繁发生及其严重后果使学校安全问题成为了社会关注的热点。
Because mornings are darker, the safety of people getting to work and school is a problem.
由于早晨天色较暗，人们上班和上学的安全是个问题。
Recently the safety of school buses has become an increasingly serious problem.
近期校车安全问题成为了一个日益严重的问题。
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