Hiccup leaned forward, biting his lip, and slid the heavy iron bolt to the left.

卡嗝身体前倾，咬着嘴唇，把沉重的铁栓滑到左边。

When at last the twelve rods were made, Ahab tried them, one by one, by spiralling them, with his own hand, round a long, heavy iron bolt.

十二根铁条终于打出来之后，亚哈一根一根地试过，亲手把它们绕在一个又长又重的铁螺栓上。

The door of the archway was made of solid oak, brown, shrunken, and split in many places; though frail in appearance, it was firmly held in place by a system of iron bolts arranged in symmetrical patterns.

拱门的门是实心橡木做的，褐色，皱缩，多处开裂；虽然外观脆弱，但它被对称排列的铁螺栓系统牢牢固定在适当的位置。

" This one understands" . Missandei turned as if to go, then paused a moment and said, " It is said that the Yunkai'i have ringed the city all about with scorpions, to loose iron bolts into the sky should Drogon return" .

" 小人明白。" 弥桑黛转身欲行，忽又停下，" 据说渊凯人在城市周边架起弩炮，若卓耿返回，就用铁箭射他下来。"