a process or result of becoming different
变化, 改变
多年来，这座城市的天际线发生了明显的变化。
a group of people who compete against another group in a sport or game
队, 团队
一个运作良好的团队营造了一个支持性的环境，每个成员的优势都得到重视。
something that is created or grown for sale
产品, 商品
这家科技初创公司上个月在贸易展上推出了其旗舰产品。
a quality such as red, green, blue, yellow, etc. that we see when we look at something
颜色
交通灯有三种颜色：红色、黄色和绿色。
the direction or side that is toward the east when someone or something is facing north
右
他离开大楼后向右走去。
an agreement between two or more parties, typically involving the exchange of goods, services, or property
交易, 协议
她在签署合同前仔细审查了交易的条款。
the total number or quantity of something
数量, 金额
厨师调整了菜肴中调味料的量以达到完美的味道平衡。
the mixture of gases, primarily oxygen and nitrogen, that surrounds the Earth and is essential for breathing
空气, 大气
实验室监测空气的质量。
the body part that pushes the blood to go to all parts of our body
心脏, 心
心脏通过泵血为全身提供氧气和营养。
a spoken or written remark that expresses an opinion or reaction
评论
这位喜剧演员的帖子收到了许多幽默的评论。
the point or part of something that is the highest
顶端
他到达梯子的顶端，小心翼翼地平衡身体以修理灯具。
the way that two or more people or things are different from each other
区别
他看不出两幅画之间有任何区别；对他来说它们看起来一模一样。
a group of people who live in the same area
社区, 共同体
他们搬到了一个新城市，并迅速融入了他们的新社区。
something we say, write, or do when we are replying to a question
答案
老师表扬她给出了正确的答案。
the red liquid that the heart pumps through the body, carrying oxygen to and carbon dioxide from the tissues
血液
当你割伤时，血可能会从伤口流出。
the leader of a country that has no king or queen
总统, 国家元首
总统的任期为四年。
a very young child
婴儿, 宝宝
父母急切地等待着他们第一个孩子的到来。
the way things are or have been at a certain time or place
情况, 状况
在当今快节奏的世界中，为了蓬勃发展，快速适应不断变化的情况非常重要。
the system of communication by spoken or written words, that the people of a particular country or region use
语言
他们使用在线资源来学习语言的语法和词汇。
a TV station that broadcasts different programs
频道, 电视台
电视网络通过提供独家节目和创新的频道套餐来争夺收视率。
the soft movable part inside the mouth used for tasting something or speaking
舌头, 味觉器官
医生检查了病人的舌头以寻找疾病的迹象。
a formal or polite word for referring to a woman
女士, 夫人
肖像中的女士以其在社会中的美丽和优雅而闻名。
someone who serves in an army, particularly a person who is not an officer
士兵, 军人
士兵把他的靴子擦得闪闪发光。
