It also carries a loudspeaker to broadcast a pre-recorded message to remind visitors of the importance of social distancing.
它还带有一个扩音器，播放预先录制的信息，提醒游客保持社交距离的重要性。
2
Pre-schools should mainly be play schools, centered on this kind of discovery learning and the teaching of basic social skills.
幼儿园应该是以这种发现式学习和基础社会技能教育为中心的游乐学园。
3
early childhood interventions (e.g. home visits for pregnant women, pre-school psycho-social activities, combined nutritional and psycho-social help for disadvantaged populations);