@AltenbergLee @dgurdasani1 Right, and combinations have non-numerical interactions too. Like reduced occupancy or people staying home meant contact tracing more feasible and more effective because contact numbers lower.
@AltenbergLee @dgurdasani1 对，组合也有非数字交互。就像入住人数减少或人们待在家里一样，接触者追踪更可行、更有效，因为联系电话更少。