the elevated or empty part in the middle of the stomach, made by cutting the umbilical cord just after birth
肚脐, 脐
外科医生在肚脐正下方做了一个小切口以进入腹腔。
relating to the armed forces that operate at seas or waters in general
海军的, 与海洋有关的
海战战术涉及战略机动和海战。
related to ships, navigation, or the sea
航海的, 与船舶有关的
海里是用于计算海上距离的测量单位。
having four right symmetrical angles like a square or a rectangle
四边形的, 长方形的
植物学家注意到，在显微镜下观察时，许多植物细胞呈现出明确的四方形形状。
to multiply an amount or number by four
使成四倍, 乘以四
该公司计划通过投资新的生产设施将其生产能力翻两番。
(of a person) having loose and wrinkled skin due to old age
皱巴巴的, 干瘪的
她干瘪的手在伸向茶杯时微微颤抖。
any phrase or word that is made by shuffling the letters of another phrase or word
字谜, 文字游戏
英语老师挑战学生分析一首诗并找到它的字谜，通过重新排列字母揭示隐藏的含义。
able to be compared with another thing due to sharing a similar feature, nature, etc.
类似的, 相似的
经济学中的供需概念与物理学中的因果法则类似。
a comparison between two different things, done to explain the similarities between them
类比
a remarkable accomplishment
成功
公司的新产品发布取得了成功，在市场上获得了éclat并产生了显著的销售。
containing what is best of various ideas, styles, methods, beliefs, etc.
折衷的
他解决问题的折衷方法涉及从各个专业领域汲取知识。
a period during which the sun or moon is temporarily obscured by the shadow of another celestial body
日食, 月食
月全食将月亮变成了深红色。
a feeling of happiness and joy
欢乐, 快乐
尽管有障碍，她仍保持着乐观、温暖和快乐的精神。
