In the north of China, there lies a 6,700-kilometer-long (4,161-mile-long) ancient wall. Now well-known as the Great Wall of China, it starts at the Jiayuguan Pass of Gansu Province in the west an
"co"As well as the magazine's "president" in English。这是你原话的翻译。主管:Competent。名词 person in charge 动词 be in charge of/be responsible for。主办:Host。动词 host。协办:Co。社长:Director。