in the lead

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。

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

没有一个参赛上那个知疲倦。

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

外展神经元滞后组而是引导组被对侧动眼神经核逆向刺激驱动。