..and provide spirit bears with a healthy forest home. 为白灵熊提供了一个健康的森林家园
their grazing encouraged a healthy growth of new grasses. 草原上的新苗也得以健康生长
but it has to happen if the forest is to remain healthy. 但若保持雨林的健康这种事情必须要发生.
0nly fat, healthy cubs will survive the Arctic winter. 同时只有健康、饱满的小狐狸 才能捱过北极的寒冬
so he can concentrate with them on keeping fit and healthy. 所以它要做的只是保证它们健康精壮