to prevent sb from doing sth or to prevent sb doing sth阻止某人做某事；制止某人做某事
He said this would prevent companies from creating new jobs.他说这会妨碍公司创设新的工作岗位。
The police have been trying to prevent them carrying weapons.警方一直在设法阻止他们携带武器。
Only rain can prevent us from winning.只有下雨才会妨碍我们取胜。