in the lead

1.She gave a vibrant performance in the leading role in the school play.

她在学校表演中生气盎然地扮演了主角。

2.None of the competitors could catch up with the untiring runner who was in the lead.

没有一参赛者能追上倦的领跑者。

3.Abducens neurons in the lagging group but not those in the leading group were activated by antidromic stimulation of the contralateral oculomotor nucleus.

外展神经元的滞后组而是引导组被对侧动眼神经核的逆向刺激驱动。