比如看到别人在图片上面写有“by 2009” 或者“by nana(名字)”
在这里by具体表什么呢?
byç¨æ³å¾å¤
æç±ãç¨ã被ãæªæ¢å°çä¸åçææã
by 2009âå°2009å¹´çæ¶åâ
by the end of last week "æªæ¢å°ä¸å¨æ«"
âby nanaï¼ååï¼â被ãããããã
He is seen by Nana.ä»è¢«å¨å¨çå°ã
æç±ãç¨ã被ãæªæ¢å°çä¸åçææã
by 2009âå°2009å¹´çæ¶åâ
by the end of last week "æªæ¢å°ä¸å¨æ«"
âby nanaï¼ååï¼â被ãããããã
He is seen by Nana.ä»è¢«å¨å¨çå°ã
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