struggled to do sth

努力做某事

be supposed to do sth───应该做某事；被期望干某事

be liable to do sth───容易做某事

have got to do sth───必须做某事

not one to do sth───没有人做某事

struggled on───挣扎下去

the better to do sth───做某事更好

struggle for existence───生存斗争；生存竞争

bored to death───令人厌烦得要死

scared to death───吓得要死；被吓死；害怕得要命