He continued studying for the exam without being crushed.

This problem is very difficult.

The difficulty of this problem makes me scratch my head.

This problem is so difficult to solve, it gives me a headache.

This ramen is very spicy.

It is said that people born in the year of Xin, the eighth of the ten Heavenly Stems, have strong willpower and decisiveness.

It is said that people born in the year of Xin, the eighth of the ten Heavenly Stems, have strong willpower and decisiveness.

His troops continued their advancement southward.

Our troops began to advance southward.

As the oldest legitimate son of the family, he carries a great responsibility.