My boyfriend gave me a gift.

Everyone was surprised by the news.

In this experiment, it is necessary to let the sample stand overnight.

This yogurt is left to stand for 24 hours to ferment.

We must consider appropriate measures for this problem.

Prepositions are an important part of grammar.

I placed the materials before the important meeting.

Kujō Yoshitsune, the former Prime Minister and Regent of the Go-Kyogoku, played an important role in Japanese history.

He is suffering from post-traumatic stress disorder from the war.

The rectus capitis posterior major muscle is a part of the neck muscles, and it helps in the action of pulling the head backwards.