helpful什么意思

helpful什么意思翻译 helpful 什么意思? helpful什么意思 helpful 什么意思 l'm helpful什么意思 To open a book is always helpful什么意思 helpful啥意思 helpful的意思 she is helpful 中文意思 You are helpful.的意思. 英语翻译help helpful helps helped这些什么意思呢？哪个用来形容同学呢？ Early rishing is helpful in more than one way.什么意思? thank you both,though for being so helpful.这里的though什么意思 you are helpful上一句填什么 is she a helpful girl 的意思 helpful的ful是啥意思 helpful与help有什么区别 英语造句,解释单词和造句子意思.helpful