在美国，医生有美国医学会，小学校长有全美小学校长协会。
Doctors have the American Medical Association, elementary school principals have the National Association of elementary school principals.
在美国，医生有美国医学会，小学校长有全美小学校长协会。
Doctors have the American Medical Association, elementary school principals have the National Association of elementary school principals.
应用推荐