So I'm concerned about every virus and I'm very precautious.

所以我对每一种病毒都很担心，我也非常的谨慎。

In the meantime , teachers may have a chance to detect signs of psychological problems in advance and take precautious measures accordingly.

同时，教师也有机会提前发现心理问题的迹象， 相应的预防措施。