do one's worst

do one's best do one's bit do one's damnedest do one's devoir do one's duty do one's endeavor do one's endeavours do one's hair do one's level best do one's need do one's needs do one's part

hemibilirubin hemibiotrophs hemiblastula hemiblock hemibranch hemibranchiate hemic hemic accentuated hemic calculus hemic distomiasis