the process in which one atom, ion, or group replaces another, resulting in a chemical transformation
交换
a set of planned actions or steps to be followed in order to achieve specific goals or complete a task
程序
to form, produce, or prepare something, by putting parts together or by combining materials
做
people that are related to each other by blood or marriage, normally made up of a father, mother, and their children
家庭
the system of communication by spoken or written words, that the people of a particular country or region use
语言
a show or series of shows that is broadcasted on television at specific times, which can include news, movies, TV series, educational content, and other types of programming
电视节目
a book or electronic resource that gives a list of words in alphabetical order and explains their meanings, or gives the equivalent words in a different language
词典
a small container or bottle used for carrying water or other liquids, typically used by hikers, campers, or soldiers
水壶
a space in a building with walls, a floor, and a ceiling where people do different activities
房间
the special set of clothes that all members of an organization or a group wear at work, or children wear at a particular school
制服