有備而來

to come prepared

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

and / as well as / and so / but (not) / yet (not) / (indicates causal relation) / (indicates change of state) / (indicates contrast)

to come / to arrive / to come round / ever since / next

to prepare / get ready / to provide or equip

(bound form) to prepare; to equip / (literary) fully; in every possible way