官方

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

网址

wǎng zhǐ website; web address; URL

：cc55net 手

shǒu hand; (formal) to hold; person engaged in certain types of work; person skilled in certain types of work; personal(ly); convenient; classifier for skill; CL:雙|双[shuang1],隻|只[zhi1]

输

shū to lose; to transport; to donate; to enter (a password)

关于

guān yú pertaining to; concerning; with regard to; about; a matter of

guān yú pertaining to; concerning; regarding; with regards to; about; a matter of; also written 關於|关于

jdb 电子

diàn zǐ electronic; electron (particle physics)