Use a weatherproof rucksack to carry your camera and lenses around in.用防风雨的帆布背包装照相机和镜头。The finished roof should be weatherproof for years.修过的屋顶若干年内不会漏雨。The Weatherproof louvre is designed for intake and exhaust ventilati...
Most of us need to lead more balanced lives to be healthy and happy...我们中大多数人需要过更为平衡的生活，以保持健康和快乐。The motion of the rotor can be balanced completely with rotating counterweights attached to the crankshaft.使用连接在曲轴上的转动平衡块,转...
他们穿过出入口向左转去。They turned through the gateway on the left.向左转走!By the left flank, march!沿这条路走一小段，向左转，然后过桥。Just go down the road a little way, turn left, and cross the bridge....