castoff

1.Miss Diana gave away all her castoffs to the little girls in the orphan asylum.

戴安娜小姐把她所有穿旧不服送给了孤儿院小女孩。

2.then simulates to eluviate the mixtures of adsorption fly ash and gangue and gains the best proportion of the two kinds of castoff when they fill up mine subsidence area;

并对吸附灰和煤矸石混合进行淋溶模拟试，得出吸附粉煤灰和煤矸石充填采煤塌陷区最佳灰石比；

3.The factory has dumpaged its castoff into that river all along.As result,the river has been polluted.

该工厂一直将其倾倒在那条河里。结果，那条河被污染了。