a对b至关重要英语

A is important to B A is crucial/critical/vital/significant to B A is of great importance/significace to B there is nothing on this planet that is more important/significant/crucial/critical/vital for A than B.

A is/was good for B A do/does/did good to B A benefit B B gain/get/receive benefit from A A influence/affect B in a good/profit/valuable way A is/was helpful/assistant/ancillary/subordinate/auxiliary/avilable/valuable/worthy for B

A and B related

A and B are relevant