As an object lesson of what we're up against.

算是对于我们即将面临的挑战进行实战教学。

The way ants work is an object lesson in order and organization.

【object】蚂蚁的工作方式是有秩序和有条理的范例。

If one were optimistically inclined, one might see tragedy as providing an object lesson in resolving conflicts reasonably in a world of overwhelming enmity.

如果一个人倾向于乐观，他可能会将悲剧视为在一个充满敌意的世界中合理解决冲突的实物教训。