不畏艰险

thick-and-thin Faults are thick where love is thin. thick and fast through and through know through and through sludge and thick liquid pump through fair and foul thick go through fire and water through good and evil report through good and evil repute thick and thin yarn thick-and-thin crepe thick-thin chart through and through wound through and through suture Through-and-through infarct through-and-through sawing slippery and thick fur