while循环和for循环的区别
教育问答
for循环的目的是为了限制循环体的执行次数，使结果更精确。while循环的目的是为了反复执行语句或代码块。
有关【for a while是什么意思】的内容
law是什么意思
教育立知
law英音[lɔ:]美音[lɔ]【中文释义】n.法；法学；规律；法制；vt.&vi.[口语、方言]诉诸法律，对…起诉，控告；vt.控告；对…起诉。【英文释义】Noun:the collection of rules imposed by authority；"civilization presupposes respect for the law""...
child是什么意思
教育立知
child英音[tʃaɪld]美音[tʃaɪld]【中文释义】n.小孩，孩子；幼稚的人；产物；弟子。【英文释义】Noun:a young person of either sex；"she writes books for children""they're just kids""`tiddler'is a British term for youngster"a human ...
task是什么意思
教育立知
task是什么意思英音[tɑ:sk]美音[tæsk]【中文释义】n.工作，任务；作业；苦差事；vt.交给某人（任务）；使过于劳累。【英文释义】Noun:any piece of work that is undertaken or attempted；"he prepared for great undertakings"a specific piece of work r...
prize是什么意思
教育立知
prize英音[praɪz]美音[praɪz]【中文释义】n.奖赏；战利品；值得努力争取的东西；vt.珍视，珍惜；估价；adj.获奖的，有望获奖的；理应获奖的。【英文释义】Noun:something given for victory or superiority in a contest or competition or for winning a lot...
singer是什么意思
教育立知
singer是名词，通常翻译为唱歌的人、歌唱家、歌手等，其英文释义为“A singer is a person who sings，especially as a job”，例如“Many rated him the best singer of all time”的意思是许多人认为他是有史以来最优秀的歌手。相关例句：1、The singer...
buy后面是用to还是for
教育立知
buy后面可以用to，也可以用for。buy sth to sb的意思是做某事给某人，例句：I bought a bag to my father；buy sth for sb的意思是为了某人而做某事，例句：I bought a bag for my father。buy sth to sb一般是临时起意的，没有计划的，而buy sth for sb是之...
hang是什么意思
教育立知
hang英音[hæŋ]美音[hæŋ]【中文释义】vt.悬挂；（被）绞死；贴，装饰；使悬而未决；vi.悬垂；被吊死；附属，依靠；悬而未决；n.悬挂的样子；（动作的）暂停；〈口〉大意，要点；〈口〉做法，诀窍。【英文释义】Noun:a special w...
for前面加什么词
教育立知
for是介词，前面一般接名词、形容词、动词。介词又称前置词，是英语中最活跃的词类之一，它表示的是它后面的名词或代词(或相当于名词的其它词类、短语或从句)与其它句子成分的关系。for用作介词，连词，缩写。在作介词...
roast是什么意思
教育立知
roast英音[rəʊst]美音[roʊst]【中文释义】vt.&vi.烤，烘，焙；vt.嘲讽，挖苦；n.烤肉；户外烧烤野餐；adj.烤好的，烤制的。【英文释义】Noun:a piece of meat roasted or for roasting and of a size for slicing into more than one portionnegative criticismAdjec...
trunk是什么意思
教育立知
trunk英音[trʌŋk]美音[trʌŋk]【中文释义】n.树干；象鼻；躯干；汽车车尾的行李箱。【英文释义】Noun:the main stem of a tree；usually covered with bark；the bole is usually the part that is commercially useful for lumberluggage consisting of a large strong case used ...
card是什么意思
教育立知
card英音[kɑ:d]美音[kɑrd]【中文释义】n.卡片；纸牌；明信片；信用卡；vt.记于卡片上。【英文释义】Noun:one of a set of small pieces of stiff paper marked in various ways and used for playing games or for telling fortunes；"he collected cards and traded them wit...
kettle是什么意思
教育立知
kettle是什么意思英音[ˈketl]美音[ˈkɛtl]【中文释义】n.（烧水用的）壶；小汽锅。【英文释义】Noun:a metal pot for stewing or boiling；usually has a lidthe quantity a kettle will hold(geology)a hollow(typically filled by a lake)that results from the melting of a mass o...
puppet是什么意思
教育立知
puppet英音[ˈpʌpɪt]美音[ˈpʌpɪt]【中文释义】n.木偶；傀儡；受他人操纵的人。【英文释义】Noun:a small figure of a person operated from above with strings by a puppeteera person who is controlled by others and is used to perform unpleasant or dishonest tasks for someone...
whale是什么意思
教育立知
whale英音[weɪl]美音[hwel,wel]【中文释义】n.[动]鲸，鲸鱼；巨大的事物；v.捕鲸；击打，猛击。【英文释义】Noun:a very large person；impressive in size or qualitiesany of the larger cetacean mammals having a streamlined body and breathing through a blowhole on t...
important前面加a还是an
教育立知
...加a。important，英语单词，主要用作形容词，作形容词时意思是“重要的，重大的；有地位的；有权力的”。其有it is important for sb to do和it is important to sb两种常见搭配。it is important for sb to do强调做某事对某人的重要性，it is import...
sail是什么意思
教育立知
sail英音[seɪl]美音[sel]【中文释义】vi.航行；起航；驾驶帆船；vt.航行；开船；（水禽）游泳；驾驶（船）；n.帆船；航行；帆状物；航行距离。【英文释义】Noun:a large piece of fabric(usually canvas fabric)by means of which wind is used to propel a...
suit是什么意思
教育立知
suit英音[su:t]美音[sut]【中文释义】n.一套外衣；西装，套装；诉讼；恳求；vt.适合于（某人）；尤指服装、颜色等相配；合身；适宜；vi.合适，相称。【英文释义】Noun:a set of garments(usually including a jacket and trousers or skirt)for outerwear...
purse是什么意思
教育立知
purse英音[pɜ:s] 美音[pɜrs]【中文释义】n.钱包，钱袋；财力，财源；和包或钱袋相似的东西；女用小提包；vt.使皱起，噘起。【英文释义】Noun:a container used for carrying money and small personal items or accessories(especially by women);"she reached...
joke是什么意思
教育立知
joke英音[dʒəʊk]美音[dʒoʊk]【中文释义】n.笑话，玩笑；笑柄，笑料；vt.&vi.开玩笑；戏弄；闹着玩；说着玩。【英文释义】Noun:a humorous anecdote or remark intended to provoke laughter；"he told a very funny joke""he knows a million gags"&...