The word 降低 is formed by combining two characters, each contributing a core meaning to create a new, unified concept. The first character, 降 (jiàng), carries the sense of "to descend" or "to fall". The second character, 低 (dī), means "low" in terms of height or level. When placed together, they form a complementary verb where the action of 降 (descending) naturally results in the state of 低 (low), thus conceptually meaning "to lower" or "to reduce". It is a logical and visual pairing where one character describes the action and the other describes the intended outcome.