n. 保护, 防卫, 贸易保护制度
With the help of Denis Hayes, a graduate student at Harvard University, Nelson organized the first Earth Day on April 22, 1970, educating participants in the ___29___ of environmental protection.
四级 · CET-4 2025年12月 第3套
It fights for the protection of human dignity and listens to and acts on the cries of the most vulnerable.
六级 · CET-6 2025年12月 第2套
Advocates for the protection of the natural environment from destruction or pollution urge the public to eat less meat.
六级 · CET-6 2025年6月 第2套
Environmental Protection Agency, the largest sources of U.S.
六级 · CET-6 2025年6月 第2套
Protection policies were originally designed to suppress bad development and boost historic preservation in our urban areas.
六级 · CET-6 2023年3月 第1套