这台电脑的电路设计非常复杂。

The ___circuitry in this computer is highly sophisticated.

这台电脑的电路设计非常精密，确保了高速运行。

The computer's ___circuitry is highly sophisticated to ensure fast performance.

现代智能手机的内部电路系统极其精密复杂。

The internal ___circuitry of modern smartphones is remarkably intricate.