请Once in a while there is an o请问Once in a while there is an opportunity to pass on a kindness.I lost my parents to cancer six months ago.I cared for both of them but could not have done it without the love and generosity of friends-friends who

once in a while Once In A While 歌词 keep a diary once in a while once in a while ?什么意思? 请帮忙翻译Would it kill 'em to post a road sign once in a while for a while 和 after a while 和once in a while 和 all the while的意思 和区别（求详解） at that moment/once in a while/at the same time 有什么区别 请讲明选择这个选项的原因He will be back _________.A.for a while B.after a while C.in a while D.once in a while once in a blue moon 意思和once in a while一样嘛? 请教大家 once in a while 什么意思 I smoked only once in a while and for run. 他们偶尔见面 翻译 They see ( ) ( ) once in a while once in a while同义词 Aoften Bnever Csometimes Dever 请Once in a while there is an o请问Once in a while there is an opportunity to pass on a kindness.I lost my parents to cancer six months ago.I cared for both of them but could not have done it without the love and generosity of friends-friends who once in a while与every once in a while有什么细微区别,后者更频繁些?谢谢了 now and then与now and again 、once in a while三者有何区别,请能够举例说明更好 every once a while ,every once and a while有什么区别?给两个句子,I JUST WANT U TO SAY IT EVERY ONCE A WHILE.EVERY ONCE AND A WHILE I SCREAM STUFF AT THE TV. He was busy writing a story,only ( stopping ) once in a while to smoke a cigarette.请帮我理解为什么用stopping,