A survey conducted by Professor Huo Jinzhi from the medical school of Suzhou University showed 4.6 percent of junior middle school students had had sex compared with 4.2 percent in senior high schools.是什么意思_A survey conducted by Professor Huo Jinzhi from the medical school of Suzhou University showed 4.6 percent of junior middle school students had had sex compared with 4.2 percent in senior high schools.在线翻译_英语_读音_用法_例句