If you're stuck, if you're struggling, if you're not certain about something, please ask. We're not mind readers, we can't tell when you're struggling, other than sort of seeing the expression on your face, we need your help in identifying that.

如果你很差，如果你很纠结，如果你不确定某件事情，请问我们，我们不会读心术，我们没法儿看出来你们很纠结，除非能从你们的面部表情看出来，我们需要你们在这件事儿上的配合。

麻省理工公开课 - 计算机科学及编程导论课程节选

I did have a student who struggled with classes.

我有个学生对课程很纠结。

与职业发展咨询老师 - SpeakingMax英语口语达人

You don't really puzzle your head about questions of interpretation, how we determine the validity of interpretation and so on, until A) meaning becomes terribly important to you, and B) the ascertainment of meaning becomes difficult.

你一般不会在诠释，和如何确定诠释的正确与否，这样的问题上纠结，除非：1，意义对你来说很重要，2，确定意义很困难。

耶鲁公开课 - 文学理论导论课程节选