his ability to persevere despite obstacles and setbacks他锲而不舍、百折不挠的劲头儿

We need, therefore, to persevere in whatever method we choose, to give it a fair trial.因此, 无论选用什么样的方法, 我们都需要坚持用下去, 使其得到充分的试用。

Every day he persevered with his business calls and his meetings.他坚持每天都打商务电话和开会。

The Khan persevered in asserting his belief.可汗坚持自己的主张。

The school has a reputation for persevering with difficult and disruptive children.这所学校因不放弃捣乱难管的学生而闻名。