To strive, or to make efforts, with a twisting, or with contortions of the body.
To strive, to labour in difficulty, to fight (for or against), to contend.
A contortion of the body in an attempt to escape or to perform a difficult task.
Strife, contention, great effort.
To accomplish or achieve, usually through endurance or effort.
To endure or go through (an ordeal).
To sweat; to secrete sweat because of heat, nerves etc.