相连、相通、相联

1. to be related, to be connected, to be joined together

Godan verb with 'ku' ending intransitive verb

产生、导致、带来

2. to result in, to lead to, to bring about

Godan verb with 'ku' ending intransitive verb

どうしてこのように結びつくのか。

它们为什么会以这种方式联系在一起？