元件，組成更大系統並可被重用的軟硬體單元
Each component of the system was tested before the full integration.
系統的每個元件在完整整合前均已完成測試。
想把「component」記進長期記憶？
登入後用科學排程（FSRS）複習，還有連續天數與徽章等你解鎖。