互补: complementary, to complement each other...
测定: to determine (by measuring or surveying)...
药: medicine, drug, substance used for a specific purpose (e.g. poisoning, explosion, fermenting), to poison...
依依不舍: reluctant to part (idiom); broken-hearted at having to leave...
箭: arrow...
本钱: capital, asset, advantage, the means (to do sth)...
团伙: (criminal) gang, gang member, accomplice, crony...
开阔: wide, open (spaces), to open up...
阵容: troop arrangement, battle formation, lineup (of a sports team etc)...
