Sent_en: 2zh The officer, Jeffrey Stenroos, who had worked for the Los Angeles Unified School District police for eight years, caused thousands of students to remain on lockdown for hours.
Sent_yy: 这名名叫杰弗里·斯滕鲁斯的警官在洛杉矶联合学区警察局工作了八年，他让数千名学生被封锁了几个小时。