For catchment areas greater than gutter capacity, slotted holes can be installed.如果汇水面积大于天沟排水能力, 可以在天沟底部打孔.The Water Framework Directive: Stakeholder Preferences and Catchment Management Strategies - Are They Reconcilabl...
现在,99%的小学生都亲手操作过电脑。Ninety-nine per cent of primary pupils now have hands-on experience of computers.这是他亲手种的花.This is the flower he planted with his own hands.这些蛋糕是你们亲手做的 吗 ?Did you make these cakes yourselves?...