For practical purposes; in effect though not officially.

• Nearly complete; almost.

实际上如此；在效果上而非名义上。

• 几乎；接近完成。

Conducted or existing online or by computer rather than physically.

• Remote or digital in place of in-person.

通过计算机或在线进行，而非线下实体。

• 以远程/数字方式替代当面。

Computer-generated; simulated rather than real.

• Existing only as a simulation or digital model.

计算机生成的；模拟的，非真实的。

• 仅以模拟或数字模型形式存在。

In OOP, declared to allow overriding in subclasses.

在面向对象中：声明为可被子类重写。

Physics: short-lived, unobservable intermediary (e.g., virtual particle).

• Optics: image from which rays only appear to diverge.

物理：短暂且不可观测的中间态（如虚粒子）。

• 光学：光线仿佛从其发出形成的像（虚像）。