The police are closely monitoring the activities of the motorcycle gang.

My younger sister got chickenpox last week.

The radical of the kanji '走' is 走繞.

His running ability is the best in the team.

In biology, the phenomenon of moving towards light is called phototaxis.

His bike was speeding wildly.

He sped off and disappeared from sight immediately.

This self-propelled lawnmower is very convenient.

He was earnestly desiring success.

He could not hide his earnest desire for success.