This , originally , continued , " with his tail shut down like a hasp " ; but of this latter phrase twain ' s friend and adviser w . d . howells wrote in the margin of the manuscript , " awfully good but a little dirty " 这段描写最初后面还接续着“尾巴夹在腿中间象个纺锤” ，不过马克?吐温的朋友兼顾问豪尔斯为这句话在底稿边缘空白上写道： “好得很，只是有点不雅。
This , originally , continued , " with his tail shut down like a hasp " ; but of this latter phrase twain ' s friend and adviser w . d . howells wrote in the margin of the manuscript , " awfully good but a little dirty " 这段描写最初后面还接续着“尾巴夹在腿中间象个纺锤” ，不过马克吐温的朋友兼顾问豪尔斯为这句话在底稿边缘空白上写道： “好得很，只是有点不雅。
We found that either the abnormal central spindle structure or the absence of central spindle distributed cam could inhibit the furrow formation . it indicates that the central spindle distributed cam might involve in the regulation of furrow formation 我们发现中区纺锤体结构异常、中区纺锤体处cam的缺失均会影响分裂沟的形成，提示分布在中区纺锤体处的cam很可能参与调控了分裂沟的形成。
