1. This time they fixed heavy metal clamps to both sides of the dish so that they could fasten the chains.
    这次，他们用沉重的金属夹子把盘子夹住，以便往盘子上安装铁链。

2. They should regularly check and reinforce their homes, place heavy objects in low positions, attach cupboards and cabinets to walls, and fasten doors so that they will not open accidentally during an earthquake.
    他们应当定期检查和加固房屋，将重物放在低处，将碗橱和柜子贴墙放置，加固房门以防地震时突然脱开。

3. Fasten these papers togeher.
    把这些文件钉在一起。