这两个词都可以和表示时间的词语连用。一般说来, for后接一段时间,用以说明某事一直进行了多长时间，而since后接某一时间(过去的一个时间点),用以表示某件事开始的时间。一、for词汇分析音标：[fə(r)]释义：prep. 为，为了；因为；给；对于；至于；适合于 conj. 因为 短语except for 除了...
-s是字符串,遍历字符串每个字符,产生循环 >>> for c in "Python123": print(c,end=",") P,y,t,h,o,n,1,2,3, 1. 2. 3. 4. (3)列表遍历循环 for item in ls: <语句块> 1. 2. -ls是一个列表,遍历其每个元素,产生循环 >>> for item in [123,"PY",456]: print(item,end=",")...
因此，这里的ch表示的是变量名，其实这个变量名只要符合命名规则可以是任意的，如 a, abc都是可以的，但一般要用一个有意义的名.举例来说:for number in [1,2,3,4,5]:print(number)上面这个for循环的例子, 变量number其实可以换成x,y,z等等，都是没问题的，但这里用number作为变量名, 让别...
during在指“在整个…期间,在某个时间段的某个时间点”的含义时,通常来说in可以替换during的,使用during更强调这个整个时间段;使用during也有事件发生的时间不精确的意味; 当during指一个事件或行动而不是指一段时间时,即与一些名词illness, hol...
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用作动词 (v.)用作不及物动词S+～(+A)1. The accounts check.账目核对无误。2. The hse checked befe he jumped.那匹马在跳跃之前先停了一下。3. She checked f a moment in the dance missed a step.她跳舞时,突然停了一下,就错了一步。4. She went fward a few yards, checked turned back...
I really felt for her after her husband had an affair with another woman. 你的翻译:___。(底部留言) “feel one's legs”是什么意思?(单选) 例句: I don't think I can feel my legs after a long walk. A. 脚废了...
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