in so far

to the degree or extent that

达到某种程度或程度

insofar as it can be ascertained, the horse lung is comparable to that of man

在可以确定的范围内，马肺与人的肺相当

so far as it is reasonably practical he should practice restraint

只要合理可行，他就应该克制自己

insofar

so far

to that extent

to that degree