placement in layers

例句：

1. 1.The engineer placed the components in layers toensure proper functioning.
   工程师将组件分层放置以确保正常工作。
2. 2. The construction crew carefully placed thebricks in layers to build a sturdywall.
   建筑工人小心翼翼地将砖块分层放置，以建造一座坚固的墙。
3. 3. Theartist painted the canvas in layers, creatinga stunning effect.
   艺术家在画布上分层绘制，创造出惊人的效果。