单词	sand heap analogy
释义	sand heap analogy 沙堆法
随便看	active fall-out active fault active feedback active ferment active fermentation active fertilizer active fiber active fiber optics element active fibre active field period active figure control active file active file directory active file list active file table active fill active filler active filter active-filter building blocks active filter hybrid active filters active filters and other active networks active fire active fission product release active flank 试灯无意思试牵绿茎下寻藕试盝幞头谁与度试看几许消魂试看取当年韩五试看百二山河试立荒庭听取试细听试课阳坡试重寻消息 09054 09055 09056 09057 09058 09059 09060 09061 09062 09063