Definition
to bar an individual or entity from participating in something
使（某人或机构）无法参与
He locked all the employees out of the project, preventing them from knowing about internal changes.
他把所有员工都排除在项目之外，使他们无法了解内部变化。
The new policy will lock many students out of their schools, making them unable to participate in the annual competition.
新政策将使许多学生无法参与学校的年度比赛。
If he fails to submit his report on time, the student will be locked out of the opportunity to participate in class.
如果他未能及时提交报告，该学生将被剥夺参与课堂的机会。