expand
expand[ik'spænd]vt.1.■(在程度、大小、尺寸、容积、体积、范围、区域等方面)扩大，扩展，扩充，增加；使膨胀，使扩张，使伸展；发展；【军事】扩编：They hope to expand their company.他们希望扩大公司的规模。Heat expands most metals.加热使大多数金属膨胀。2.■使伸开，伸张，展开，张开(叶、花瓣、翅或帆等)：The eagle expanded its wings.鹰展开双翅。Flowers expanded their petals in the sunshine.花瓣在阳光下绽开。3.■扩展(题目、论题、思想等)；详细展开，详谈，详述，更充分地阐述；增述；增订(词典等)：to expand a short story into a novel把一篇短篇小说扩写成一部长篇小说to expand a phrase into a sentence把词组扩充成句子4.■把(缩略式、方程式等)全部写出：to expand an equation展开方程式5.■【数学】6.■重写(算式)以显示因数的乘积7.■重写(算式)表示出和、积等特殊项8.■展开：to expand a function in a power series把一个函数展开成幂级数vi.1.■(在程度、大小、范围等方面)变大，扩大，扩张，扩展；发展；增长；推广开来；膨胀：The mind expands with experience.经验使人心胸开阔。Most metals expand with heat.大多数金属受热膨胀。2.■展开，张开，伸展：The buds had not yet expanded.花蕾尚未绽开。3.■进一步阐述，详述，详谈，充分叙述 (on， upon)：to expand on a statement详谈一份声明to expand on a topic阐述一个题目(或论题)4.■变得和蔼可亲；变得愿意交谈；感到心情舒畅，感到心旷神怡，热情洋溢：The flattery made her expand.那些奉承使她心花怒放。近义词swellinflate反义词contract
expandexpand[iksˈpænd]vt.1.■扩大, 扩展, 扩张, 扩充2.■张开, 使发展; 使膨胀,【军】扩编3.■【数】展开(代数式等)4.■阐述, 详谈; 引伸5.■完全写出(缩略部分)6.■推广; 膨胀expand one's knowledge of foreign countries扩大个人对外国的知识expand one's view阐述自己的观点The writer expanded his short novel into a long one.那位作者把他的短篇小说扩展为长篇。词性变化expand[iksˈpænd]vi.1.■膨胀, 扩大2.■展开, 张开; 开放3.■扩充; 发展(into); 推广开来4.■详述, 引伸(on, upon)5.■变得亲切起来, 感到舒畅The petals of many flowers expand in the sunshine.许多花瓣在阳光下开放。She expands only when being praised and flattered.她只有受到表扬和奉承的时候才喜笑颜开。
参考词汇expand;swell;distend;dilate;都含“扩大”、“增加”的意思。1.■expand 侧重指“上下、左右、前后的面或体的伸展”, 如:Irons expands when it is heated.铁加热时就膨胀。2.■swell 强调“由于内在的压力或外加某物而使增高或加大至超过正常情况”, 如:His injured wrist began to swell.他那受伤的手腕开始肿了。3.■distend指“由于内部压力而引起膨胀”, 如:The balloon was distended.气球已膨胀。4.■dilate指“加宽或增大”, 尤指“加宽或延伸园形物”, 如:He looked at it with dilated eyes.他睁大了眼睛看它。
