The main problem with this project is the lack of communication.

This question text is too difficult, it's hard to understand.

This exam is a matter of life or death for me.

He is viewing that situation as a serious problem.

He views that situation as a problem.

The Address Resolution Protocol is a means to identify the physical address of a device on the network.

He likes to take a walk in the park at dusk.

The Reverse Address Resolution Protocol is a protocol for obtaining host names from IP addresses.

We should always remember the power of Kannon in difficult times.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.