a. 干净的, 清白的, 简洁的 adv. 清洁地, 完全地 vt. 清理, 使干净, 出空 vi. 被搞干净 n. 打扫
That means wiring Africa with clean, dependable energy.
六级 · CET-6 2026年6月 第3套
His town of Wanyjok was electrified by a private company, providing clean, reliable, and affordable power to his business and his neighbors.
六级 · CET-6 2026年6月 第3套
E) This little story turns out to be a fascinating glimpse at the challenges cities face as they try to update their urban infrastructure — to clean up the air, reduce greenhouse emissions, and speed up travel by making towns more bike-friendly.
四级 · CET-4 2025年12月 第1套
Attended by 20 million people across the United States, the event ___30___ support for legislation such as the Clean Air Act and the Endangered Species Act.
四级 · CET-4 2025年12月 第3套
For Flippy is a robot—a cloud-connected mechanical arm with 3D thermal scanners for eyes—that can flip burgers or fry 80 baskets of food an hour, monitor that food and even clean up afterwards.
六级 · CET-6 2025年12月 第1套