自愿做某事

not one to do sth───没有人做某事

be supposed to do sth───应该做某事；被期望干某事

take care to do sth───注意做某事

the better to do sth───做某事更好

volunteer forces───志愿部队

be liable to do sth───容易做某事

bored to death───令人厌烦得要死

buttered toast───n.奶油土司

have got to do sth───必须做某事