久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

It did not furnish an explantation for the heat generated by friction.它未能圓滿地解釋因摩擦而產(chǎn)生的熱....

移出...

explantation的音標(biāo)：explantation的英式發(fā)音音標(biāo)為：[ek?spl?n'te???n]explantation的美式發(fā)音音標(biāo)為：[ek?spl?n'te???n]...