动量可以被理解为惯性的定量表示.Momentum may be thought of as a quantitative expression of inertia.物质产生惯性的特性,还是很有价值的.The property of matter that gives rise to inertia is much more promising.除了在阻碍面前易惯性的意志薄弱.But always weak nerves in fron...
The children were used as slave labour in gold mines in the jungle.在丛林地带，儿童被用作开采金矿的苦役。The report alleges that thousands of people have been forced into slave labour by the army.该报告宣称，成千上万的人被军队逼迫做苦役。He's been forced ...