e 世博

Shì bó abbr. for 世界博覽會|世界博览会[Shi4 jie4 Bo2 lan3 hui4], World Expo

线上

xiàn shàng online

注册

zhù cè to register; to enroll

官

guān government official; governmental; official; public; organ of the body; CL:個|个[ge4]

Guān surname Guan

网

wǎng net; network

e 世博

Shì bó abbr. for 世界博覽會|世界博览会[Shi4 jie4 Bo2 lan3 hui4], World Expo

线上

xiàn shàng online

注册

zhù cè to register; to enroll

官

guān government official; governmental; official; public; organ of the body; CL:個|个[ge4]

Guān surname Guan

网

wǎng net; network

官方

guān fāng government; official (approved or issued by an authority)

网站

wǎng zhàn website; network station; node

地址

dì zhǐ address; CL:個|个[ge4]

：bb77net tsn