high testadj.经过严格试验的(经过严格试验的；优质的)highadj.高的；高尚的；高级的；高度的；全盛的adv.高；奢侈地；音调高n.高水平；高气压；（麻醉品带来的）快感high pressure sterilization高压灭菌法,高压蒸汽消毒灭菌法high-speed multiplication高速乘法high speed data acquisition高速数据收集high altitude heart disease高原性心脏病high strength enameled wire高强度漆包线High Temperature Incendiary高温燃烧弹High-Energy Aircraft Fuel高能飞机燃料high-frequency preheating高频预热High pressure reversibility高压可逆high-density pickup baler高密度捡拾压捆机

1. A new report says only about half of all students in the main school systems of America's largest cities finish high school.
   一份新的报告说，只有大约一半的学生在主要学校系统的这个美国最大的城市，完成高中学业。