他在突破警戒线后被一名警察拦截了。He was rugby tackled by a policeman after breaking through police lines.一列拖拉机突破了警戒线，隆隆响着驶上了高速公路。A line of tractors rumbled onto the motorway through a cordon of police.矿工们手持棍棒冲过了警戒线。The miners were armed...
埃迪将自动步枪的保险栓重新拉上。Eddie slipped the safety catch on his automatic back into place.给窗户装上安全锁或窗栓。Fit windows with safety locks or catches.他插上了门(栓).She bolted the door....
Are leukaemia and albinism same kind of disease?白血病与白化病是同一种病 吗 ?What should albinism child notice in nursing daily?白化病孩子在日常护理中应该注意什么?Albinism: ABsence of the pigment melanin in the eyes, skin, hair, scales, or feathers.白...
Use a template or stencil or simply do it freehand.使用样板或模版，或者干脆徒手画。Serveral of commonly used methods are photoprinting, photoengraving , mechnical engraving, and stencil.通常所采用的几种储存方法是:影印法 、 照相蚀刻 、 机械雕刻和模板.He can stencil ...