A.In Poland, swimming lessons must be given at school. B.In Poland, the swimming sport is very popular. C.Most of the schools have swimming pools in Poland. D.In Poland, students are required to swim every day.【小题2】What do we know about Jet Feng when he was a child?
区别一：词源及含义不同 mandatory来自于拉丁语mandatus，意为命令，它在强制性上带有官方或法定的味道，强调被命令或不得不做的意味。而compulsory源于拉丁语compellere，意为驱使，更强调内在必要或无法避免的。例句：①The law made it mandatory for children to attend school. 法律规定孩子们必须上学...
those removed would remain unvaccinated —which does not serve their interests. These unvaccinated children would also still go to the park, to the shopping centre, to swimming lessons etc.