They stuck to their task manfully.
他们恪尽职守。
He bore his sufferings manfully.
他勇敢地面对苦难。
He made his way manfully through the length of the wood, to its furthest edge.
他大模大样地直插树林，向最远的边缘走去。
Let us therefore boldly face the life of strife, resolute to do our duty well and manfully.
因此让我们勇敢地面对生活中的考验，坚定负责地做好该做的'事。
He strove manfully to overcome his speech defect.
他无所畏惧地努力克服自己的言语缺陷。