消防员须身穿保护装置及正压呼吸设施.Firemen should wear proper protective equipment and positive pressure self - contained breathing apparatus.可以工作在正压或负压下, 简单的螺丝刀调节, 多种弹簧可选.They work under pressure or suction. Simple screwdriver adjustmen...
他说得很慢，每个词之间都有停顿。He talks quite slowly and spaces his words out.他抱怨她喝得太慢，随即又把她的杯子续满。He topped her glass up after complaining she was a slow drinker.根据自己的口味给原汤加点盐，然后用文火慢炖。Salt the stock to your taste and leave it simmering...