what'sthemeaningof“takearisk”?

what'sthemeaningof“socialnetwork”?

what'sthemeaningof“unblock”?

what'sthemeaningof“convenient”?

what'sthemeaningof“meaningless”?

what'sthemeaningof“fake”?

What'sthemeaningof“upload‘’？

what'sthemeaningof"defriend"?

what'sthemeaningof''block''?

翻译句子：我发现学外语很难。