verb🔗Share扩大，扩张，扩展 To change (something) from a smaller form and/or size to a larger one; to spread out or lay open."You can expand this compact umbrella to cover a large table."你可以把这把折叠伞撑开，它能覆盖一张大桌子。areamassamountphysicsChat with AIVocabulary GamePractice Reading
verb🔗Share扩大，扩展，扩张 To increase the extent, number, volume or scope of (something)."A flower expands its leaves."一朵花舒展开了它的叶子。amountnumberbusinesseconomyChat with AIVocabulary GamePractice Reading
verb🔗Share详细阐述，扩展。 To express (something) at length and/or in detail."The teacher expanded on the history of the Civil War, explaining many details about the causes and effects. "老师详细阐述了南北战争的历史，解释了很多关于其起因和影响的细节。languagecommunicationwritingChat with AIVocabulary GamePractice Reading
verb🔗Share展开, 扩展. To rewrite (an expression) as a longer, yet equivalent sum of terms."Use the binomial theorem to expand {(x+1)}^4."使用二项式定理来展开{(x+1)}^4。mathChat with AIVocabulary GamePractice Reading
verb🔗Share展开，扩展 (of an expression) To become, by rewriting, a longer, yet equivalent sum of terms."The expression {(x+1)}^4 expands to x^4 + 4x^3 + 6x^2 + 4x + 1."表达式 {(x+1)}^4 展开后等于 x^4 + 4x^3 + 6x^2 + 4x + 1。mathtechnicallanguagecomputingChat with AIVocabulary GamePractice Reading
verb🔗Share分子分母同乘以一数，扩分。 To multiply both the numerator and the denominator of a fraction by the same natural number yielding a fraction of equal value"To get a common denominator, I expanded the fraction 1/2 by multiplying both the top and bottom by 3. "为了得到一个公分母，我把1/2这个分数进行了扩分，分子分母都乘以了3。mathChat with AIVocabulary GamePractice Reading
verb🔗Share扩大，扩张。 To change from a smaller form/size to a larger one."Many materials expand when heated."许多材料受热时会膨胀。massareaChat with AIVocabulary GamePractice Reading
verb🔗Share扩大，扩张。 To increase in extent, number, volume or scope."The school library expanded its collection of books to include more science fiction novels. "学校图书馆扩大了藏书范围，增加了更多的科幻小说。amountbusinesseconomynumberChat with AIVocabulary GamePractice Reading
verb🔗Share详细阐述，详述. To speak or write at length or in detail."He expanded on his plans for the business."他详细阐述了他的商业计划。languagecommunicationwritingChat with AIVocabulary GamePractice Reading
verb🔗Share变得慷慨，心胸开阔 To feel generous or optimistic."Seeing her daughter's success in school, Sarah expanded with pride and optimism about her future. "看到女儿在学校取得成功，萨拉感到非常自豪，也变得更加慷慨乐观，对她的未来充满了希望。mindemotionattitudeChat with AIVocabulary GamePractice Reading
