The Dark Shadow Shrine

If u need coaching in GP or 'O' level English, u can reach me at 91384570. In Singapore only hor....ex-Students' comments: https://docs.google.com/document/d/1dUpvamlW4bDWjhARIERriwQCwkLOJ_03/edit?usp=sharing&ouid=117308433027458335265&rtpof=true&sd=true

Monday, April 19, 2021

Singapore takes Swiss cheese approach to Covid-19 contact tracing

 Click HERE

interesting analogy:

"Every layer has holes in it,...But because we have multiple layers, the holes do not align with one another."

posted by Dark Shadow | 12:30 PM