铁环

The child was rolling a hoop.

那个孩子在滚铁环。

Beton activates a man-sized gin to catch his target. Four hemicyclic iron ring will jut from the ground and immobilize the target.

比一个对人用的捕兽夹抓住他的目标。四个半圆形铁环将从地面突出，目标无法移。