the brain wasn't relevant to our study of language大腦和人類的語言學習能力并無關聯
relevant to與 ... 有關
These facts are relevant to the case.
這些事實和此案有關。
The essay isn't even remotely relevant to the topic.
這篇文章毫不切題。
so that was the sort of general level at which it was understood.當時人們的理解差不多就在這個水平上
the sort of那種
He's the sort of person I really dislike.
他這種人我真不喜歡。
It was the sort of night when phantoms might walk.
這種夜晚正是幽靈出沒的時候。
it's become apparent just how complicated the brain functions involved in language really are.大腦對語言作用的復雜性日益凸顯
involve in卷入; 陷入
I don't want to involve in this matter.
我不想牽扯到這件事里面去。
I got involved in a quarrel about the price.
我被卷入了一場有關價格的爭吵。