Now, many primary schools and middle schools are recycling textbooks. In my opinion, it's necessary.
现在，许多小学和中学都回收课本。在我看来，这是有必要的。
The pressure swing adsorption (PSA) is one of the primary methods of treating and recycling volatile organic compound (VOC).
变压吸附为目前处理回收挥发性有机化合物的主要方法之一。
Modren aluminum industry consists of primary aluminum industry and recycling aluminum industry.
现代铝工业由原生铝工业和再生铝工业组成。
A funky robot which dances and raps is doing the rounds in primary schools across England teaching children about the importance of recycling.
一个可以跳舞、可以交谈的可爱机器人正在英格兰的各小学间巡回展出，教授孩子们回收利用的重要性。
A funky robot which dances and raps is doing the rounds in primary schools across England teaching children about the importance of recycling.
一个可以跳舞、可以交谈的可爱机器人正在英格兰的各小学间巡回展出，教授孩子们回收利用的重要性。
应用推荐