这个书架附有容易组装的说明。

The bookshelf comes with instructions to ___assemble it easily.

他从组装复杂的模型火车中找到乐趣。

He finds joy in ___assembling complex model trains.

工程师将使用3D打印部件组装原型。

The engineer will ___assemble the prototype using 3D-printed parts.