在 + Person + 的指导下
指导 (zhǐdǎo) is a verb meaning "to guide," "to direct," or "to coach." It refers to providing instruction or leadership to help someone accomplish a task. For example, 在他的指导下 means "under his guidance."
在老师的指导下,我的论文终于完成了。
zài lǎoshī de zhǐdǎo xià, wǒ de lùnwén zhōngyú wánchéng le.
Under the teacher's guidance, my thesis was finally completed.
教练指导队员们改进了训练方法。
jiàoliàn zhǐdǎo duìyuán men gǎijìn le xùnliàn fāngfǎ.
The coach guided the team members to improve their training methods.
她经常指导新同事熟悉工作流程。
tā jīngcháng zhǐdǎo xīn tóngshì shúxī gōngzuò liúchéng.
She often guides new colleagues to familiarize themselves with the work procedures.