The development of an early-warning system has reversed that trend.
安全预警系统的发展扭转了这一趋势。
2
From an early-warning perspective, make sure the warnings go right down to the community level.
从早期预警的角度来看，要确保这些警告直接下达到社区层面。
3
Carli says that one of the most significant things about his study is that it provides new early-warning signs for parents, teachers and mental health-care providers.