Đây là câu trả lời của mình ak:(bạn tham khảo nhé)
In Japanese greeting culture, the person who bows will show his appreciation and respect for the person being greeted by bowing from the waist upwards. This is a very common and parallel action, saying at the same time saying "Ohayo gozaimasu" (good morning), or sayings of gratitude or apology. Based on the low or high of the bow that people divided into 3 main types of bow.
Bow
The "Eshaku" type is the most popular greeting. In this way, people bow their heads and they go down by a few degrees. People often bowed and greeted "Eshaku" when they met by chance or when they met their superiors. To the person who helped you, you will show your gratitude more and your thanks will be much more sincere. The type of greeting used in important meetings. The next one is "Keirei". In the "Keirei" style, people will bend 30 degrees lower. This type of greeting is often used when entering or leaving a meeting room or when meeting guests. The "Saikeirei" greeting is the most formal greeting when the last greeting is folded. This greeting is often used to show deep appreciation or error.
Chúc bạn học và thi tốt !
Nếu thấy hay thì cho mình xin câu trả lời hay nhất nhaaa